Fujitsu BT0003 User Manual

Instruction Manual

Head Mounted Display

Wearable Keyboard

Unpacking and checking the device

■Head Mounted Display

■Fitting belt

Unpack all the individual parts. If any of the parts are missing, please notify your local sales representative immediately. Below is the list of included items.

□microUSB cable

□mono earphones □warranty □instruction manual (This manual) □Head Mounted Display main unit (A strap is attached to the battery cap)

□display cushion x1 □knurled screw x4

(Use a flat blade screwdriver or a coin to turn)

These are used when wearing HMD on your head.

□Left head adjuster □Right head adjuster

■Clip to a helmet

■Battery pack

■Battery charger

□Left belt attachment □Right belt attachment □side cushion x2

□top band □front band

These are used when attaching HMD to a helmet.

□Left helmet clip □Right helmet clip

□battery pack x1

□battery charger x1 □AC adaptor □power cable

■Wearable keyboard

Before using this product

--------------------------------------------------------------------------------------About the warranty

Using the Product in Applications that Require a High Degree of Safety

□wearable keyboard □wearable keyboard belt □AAA alkaline battery x2

 Be sure to fill in the necessary information on the warranty and read its

contents. After that, keep it in a safe place.

 Be sure to have the warranty on hand whenever requesting servicing.  Malfunctions that occur within the warranty period while the product is

being used correctly will be repaired without charge.

 Even if malfunction occurs during the warranty period, repair will be

subjected to charges in the case the warranty is not presented, if the malfunction is due to natural causes, improper use of the product, etc. Refer to the warranty for details.

 This product and its accessories are subject to change, in part or in their

entirety, without notice.

This product is intended for general use, such as general office use, personal use, household use, and normal industrial use, but it is not designed, manufactured or intended for applications that require a high degree of safety. Do not use this product without first adequately ensuring the level of safety required by the application. An application that requires a high degree of safety is one that is accompanied by a serious direct risk of death or personal injury unless an extremely high degree of safety is ensured, such as those applications noted below.

 Nuclear reaction control, aircraft auto pilot control, air traffic control,

mass transport system operation control, medical life support, military weapons system missile launch control, etc.

About the limited-life components

About the terms "power plug" and "power outlet"

Product License Agreement

Software License Agreement

・The battery pack and dry cell batteries are consumable parts, so they need to be replaced on a timely basis in order to maintain performance. Furthermore, purchasing and replacing batteries must be done by yourself regardless of warranty period. ・The battery pack typically have a lifespan of between 300 and 500 cycles. Battery pack’s service life will depend on the environment temperature and usage.

The power plug of the AC adapter that comes with the product is a flat-blade 2-pole plug. The manual refers to such a plug as "power plug." Connect the power plug to a

power outlet that accepts a flat-blade 2-pole plug (125 V, 15 A). The manual refers to such a power outlet as "outlet."

Fujitsu Limited (hereafter Fujitsu) grants you a limited, non-exclusive license to use the software installed on this product (Software) provided that you agree to the "Software Terms of Use" below. By starting to use this Software you are agreeing to be bound by this End-User License Agreement (this Agreement), so be sure to read the "Software Terms of Use" before using this Software. However, note that this

Agreement takes priority over any other "Terms of Use," "End-User License Agreement," or other similar documents that are separately appended to any parts of this software.

1. License and Copyrights Fujitsu grants you a limited, non-exclusive license to use this software on this product only. By purchasing this product, you the purchaser are granted the license only for the use of this software, and the rights to this software continue to revert to Fujitsu or third-party developers.

2. Transfer to a Third Party

When transferring the Software (including the manual that comes with this

product) to a third party, you shall transfer the software in its entirety along with the product on which the software is installed.

3. Modification You are not allowed to modify or reverse engineer this software, such as by reverse

compiling, or reverse assembling.

4. Limited Warranty (1) Fujitsu will not be liable in any way for any damages (including but not restricted to lost profits, work stoppages, loss of business data, or other monetary damages) that result from the use of or the inability to use the software. This also applies even if Fujitsu knew or should have known about the possibility of such damages. (2) Even if the Software includes software developed by a third party, the third party developer makes no guarantees whatsoever about the software.

5. High degree of safety This software is intended for general use, such as general office use, personal use, and household use, but it is not designed, manufactured or intended for applications that require a high degree of safety. The user must adequately implement measures to ensure the level of safety required by any such applications to use this software. An application that requires a high level of safety is one that is accompanied by a serious direct risk of death or personal injury unless safety is temporarily and

appropriately ensured, such as the following examples that require an extremely

high degree of safety.

Nuclear power core control, aircraft control, air traffic control, mass transport system operation control, medical life support, military weapons launch control, etc. Fujitsu Limited

Wireless LAN(Wi-Fi ®)(support IEEE802.11a/b/g/n)

Cautions on using 5GHz band

・The product uses the 2.4 GHz band. DS-SS and OFDM are used as the modulation schemes. The interference distance is about 40 m or less.

All bandwidths can be used, and that bands of mobile unit identification devices can be avoided. ・In the frequency band used by Wi-Fi® devices, in addition to home electric appliances such as a microwave oven and industrial/scientific/medical devices, in-plant radio stations for identification of mobile objects used in production lines of a factory (a license is required), specified low power radio stations (a license is not required), or amateur radio stations (a license is required) can be in operation.

1. Before using this device, confirm that in-plant radio stations for identification of mobile objects, specified low power radio stations or amateur radio stations are not in operation in your neighborhood.

2. If this device generates harmful radio wave interference against in-plant radio stations for identification of mobile objects, change the using frequency promptly or stop using wireless LAN function, and contact "General Inquiries" on the last page of this manual, then consult about treatment for prevention of the interference (for example, installation of partitions etc.). ・The Wi-Fi® function of the product conforms to domestic electrical equipment technical standards. Available channels vary by countries. To use Wi-Fi® overseas, check the conditions such as available frequency, regulation, etc. for the country. ・The 2.4 GHz band used by Wi-Fi® device is shared by various other devices. For this reason, the communication speed and connectable range may be decreased, or disconnection may occur, due to interference by other devices. ・To use in airplane, confirm with airline company in advance.

Wi-Fi® functions of this product use the 5 GHz band. Using the 5.2 GHz band and

5.3 GHz band outside is prohibited by the Radio Law.

- W52 (5.2GHz band/ 36,38,40,42,44,46,48ch)

- W53 (5.3GHz band/ 52,54,56,58,60,62,64ch)

- W56 (5.6GHz band/ 100,102,104,106,108,110,112,116,132,134,136,140ch)

Using Bluetooth function

This equipment has been tested and found to comply with the limits for a Class A

digital device. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference. VCCI-A

・The product uses the 2.4 GHz band. FH-SS is used as the modulation schemes. The

interference distance is about 10 m or less. All bandwidths can be used, and that bands of mobile unit identification devices cannot be avoided. ・In the frequency band used by Bluetooth devices, in addition to home electric appliances such as a microwave oven and industrial/scientific/medical devices, in-plant radio stations for identification of mobile objects used in production lines of a factory (a license is required), specified low power radio stations (a license is not required), or amateur radio stations (a license is required) can be in operation.

・The 2.4 GHz band used by Bluetooth device is shared by various other devices. For

this reason, the communication speed and connectable range may be decreased, or disconnection may occur, due to interference by other devices.

About this product

・To use in airplane, confirm with airline company in advance.

・Display is manufactured by taking advantage of highly advanced technology but

some dots may always or never be lit. Note that, this shows characteristics of liquid crystal displays and not defects in the products.

・The date and time settings will be cleared if the battery pack’s power level reaches

0%. Perform the operation below to set the current time and date. On the HMD home screen: → [Settings] → [other settings] → [Date & Time] Moreover, when this product is connected to a smartphone by using Miracast, the date and time on this product will be synchronized to the one on the smartphone. ・Fujitsu does not guarantee the compatibility of any commercially available accessories.

・Do not use a remodeled product. Using a remodeled product violates the Radio Law/Telecommunications Business Act. The product is certified according to technical standard conformance of specified wireless equipment based on the Radio Law/Telecommunications Business Act, and as a proof of it, the "Technical Compliance Mark" is depicted on the electronic nameplate of the product.

If you remodel the product by removing its screws, your certification of technical standard conformance becomes invalid. Do not use the product with its certification of technical standard conformance invalid as it violates the Radio Law/Telecommunications Business Act.

Notational conventions

Indicates precaution and should not do for use. Please be sure to read the information.

Indicates information related to operational points. Read

→

Indicates reference page

Name of items and notations

Name of item

Notation in this manual

Head Mounted Display

product, HMD, terminal, device

Smartphone/Tablet

Smartphone

Wearable keyboard

keyboard

Mono earphone

earphone

microUSB cable, power cable

cable

microUSB connection cap, diopter

connection jack cap

cap

Android™

Android

Bluetooth®

Bluetooth

The images or illustration used in this manual

Key notation and operation procedures

Notation of continuous operations

The meaning of the signs in this manual are described below.

when needed.

adjustment cap, microSD card slot cap, battery cap, external audio

The images or illustration used in this manual are examples. They may

differ from the actual image, illustration or file name. Moreover, cables may be omitted or simplified in the illustration.

The key notation in this manual is not the actual key image on the keyboard but description of the key.

For example, [BackSpace] key, [Bluetooth] key, [Power] key, etc.

Continuous operations in this manual are shown using ‘→’ notation. For example, to change “Date and Time” by tapping “Settings” in android

Warning and caution labels

Safety Precautions

Explanation of indications used in this manual

The symbols below show specific directions.

home screen is shown below.

Change by tapping “Settings” → ”Date and Time”

There are warning and caution labels on the product. Do not remove or damage them.

Before using this product, thoroughly read these safety precautions for proper use. These "Safety Precautions" describe instructions that should be observed to prevent damage to property or injury to the customer or others using the product. These instructions are divided into the following categories.

※1:Serious injury: This refers to loss of sight, injury, burns (high- and low temperature), electric shock, broken

bones, injuries with residual aftereffects from poisoning, etc. and injuries requiring hospital admission for

treatment or long-term hospital attendance as an outpatient.

※2: Injury: This refers to injuries, burns (high- and low-temperature), electric shock, etc. that do not require

hospital admission for treatment or long-term hospital attendance as an outpatient.

※3: Physical damage: This refers to extended damage to buildings, furniture, livestock, or pets.

Trademarks, Copyrights and portrait rights

Precautions

■Common precautions of HMD, keyboard, battery charger, AC adaptor and battery pack

Google, Google logo, Android, Android logo and other trademarks are trademarks or registered trademarks of Google Inc.

The Bluetooth® smart ready word mark and logo are registered trademarks owned

by the Bluetooth® SIG, Inc., and FUJITSU LIMITED is licensed to use these

trademarks.

The microSD logo, microSDHC logo are trademarks of SD-3C and LLC. Other company and product names mentioned in this manual are trademarks or

registered trademarks of their respective holders. Copyright FUJITSU LIMITED 2015

Before using the product, or when necessary, read the precautions below to ensure safe use and handling. After reading this manual, keep it carefully.

Be sure to use only the specified peripheral devices. Failure to do so

may cause overheat ignition, rupture, fault or leakage.

Do not short-circuit the connection terminal, earphone terminal,

charging terminal, etc. Do not allow conductive foreign objects (metal fragments, pencil leads, etc.) to come into the contact with or get inside of these items. Doing so may cause fire or a fault.

Before entering an area where flammable gas is generated, be sure

to turn off the product. Do not charge the battery. Failure to do so may cause the gas to catch fire.

Do not puncture the product with a nail, hit it with a hammer or step

on it. Doing so may cause ignition, damage or injury.

Do not throw the product into fire, apply heat to the product or

short-circuit the product. Doing so might cause ignition, rupture or fire.

When abnormal symptoms occur such as overheat, smoke, odor or

strange noise, please remove the product from your head and turn off the power. Remove the power plug from wall outlet if it is occurring from the battery charger or the AC adaptor. Continue to use the product in such abnormal state may cause fire or electric shock.

Turn off the product if liquid such as water or a metal fragment gets

inside the product. If it is the AC adaptor, remove the power plug from wall outlet. Continue to use the product in this state may cause fire or electric shock.

Turn off the product when you dropped the product or the cover

breaks and request a repair service. Continue to use the product in this state may cause fire or electric shock.

If you hear thunder, do not touch the power plug or connect cables

until you are safe. If there is a chance of a lightning strike, take off and turn off the product. If it is the AC adaptor, remove the power plug from wall outlet and disconnect cables. Lightning may cause fire, fault or damage the product as well as electric shock.

Do not allow metal objects or burnable items to get inside any of

opening such as slots. Doing so may cause fire or electric shock.

The customer is not allowed to disassemble, modify or repair the

product. Doing so may cause a fault, ignition, electric shock or injury.

Do not operate the product while driving a car, motorbike or riding a

bicycle. May disturb driving and cause an accident. Park the vehicle in a safe area before using the product.

Do not cover or wrap the product with bedding, place it near the

heater or on an electric carpet, etc. while using the product. Doing so may cause fire because heat is being accumulated within the product.

Do not use other than the AC adaptor included in the product or

designated AC adaptor. Do not use the AC adaptor included in the product for other devices. Doing so may cause fire or electric shock.

Do not use a cleaning spray that contains flammable chemicals to

clean. Doing so may cause fire or a fault.

Although the product has waterproof property, stop use if liquid such

as water gets inside the product from the cap and the battery cover.

Continue to use the product in this state may cause overheating, ignition or

a fault.

Never change the battery or plug an earphone if the product is wet.

Doing so may cause electric shock or short-circuit resulting in a fault or fire.

If the product is damaged because it was dropped or other reason

and its internal parts are exposed, do not touch the exposed parts with your

hands. Doing so may cause electric shock or injury.

Do not place heavy objects on the product. Doing so may cause injury

or a fault.

■Precautions to HMD

Do not use or store the product in places subject to direct sunlight or

get extremely hot (e.g. in automobiles), places that get humid. Doing so may cause electric shock, fire, damage or a fault.

Do not leave the product on unstable places such as shaky places or

tilting surfaces. Doing so may cause injury or damage if the product is dropped.

Follow the instructions on the manual to dispose the product.

Check with local codes for possible special disposal instructions. A Lithium-ion battery is used in the product. The keyboard uses dry cell

batteries. Do not dispose of batteries in a fire. They may explode.

Do not use the product if the display cushion is damaged and cannot

be attached. Doing so may cause injury by fall or collision.

Do not bring the product close to magnetized objects such as cash

cards, floppy disks, credit cards and prepaid cards. Doing so may result in loss of recorded information.

■Precautions to earphone

■Precautions to wireless

If you feel any abnormality with your skin, immediately consult a

doctor for a medical treatment. Itching, rashes, eczema, etc. sometimes

occurs if you use the product for a long time or depending on your physical constitution and condition. See Material List for materials used in the product. (→P.24)

Use the product with the cap and the battery cover closed. If the

covers are open, dirt or water may get inside causing a fault.

Do not place the product directly on sand at a beach etc. Sand or

other small particles may get inside the earphone, microphone or receiver/speaker, causing the volume to drop. If sand gets inside the product, it may cause overheating or a fault.

Adjust the volume moderately when using the earphone.

May cause a hearing loss if the volume is too high.

Permanent hearing loss may occur if earphones or headphones are

used at high volume for prolonged period of time.

■Precautions of battery pack

Warnings for Wi-Fi® and Bluetooth® technologies. The product

should be switched off wherever you are requested to do so in ・hospitals, clinics or health care facilities Especially in the operating room for surgery, ICU, CCU, etc

・airplane if it is prohibited to use wireless technologies. ・fire alarms, automatic doors and other automatic control equipment. ・Users wearing implanted pacemakers or defibrillators or other electronic

medical equipment These requests are designed to prevent possible interference with sensitive equipment using low-power signals.

The battery pack of the product is a lithium-ion battery. The battery pack is not fully charged at the time of purchase. Charge the battery pack before using the product.

Do not short-circuit the battery pack’s plus(+) and minus(-).

Do not carry or store the product with objects like a metal necklace.

May cause battery pack to ignite, burst and a fault by short-circuit.

Do not disassemble, remodel or solder.

If the battery pack's fluid contacts eyes, flush the eyes with clean water immediately and see a doctor right away. Do not rub the eyes. May cause loss of sight. The leaking battery pack fluid may ignite, explode or overheat.

Battery pack is not waterproof.

If water or seawater gets on the product, it may cause overheating, ignite, damage, electric shock or a fault. Do not charge if the battery pack is wet.

If the battery pack's fluid contacts the eyes, clothes, etc., flush with

clean water immediately. If the battery pack’s fluid contacts the eyes, see a doctor right away. Do not rub the eyes. May cause loss of sight and injuries. If battery pack’s fluid is on the product, wipe it off without touching the fluid directly.

Do not use the battery pack if it was dropped, stepped on, damaged

or any liquid leaking from it. Keep the battery pack away from fire if any liquid was leaking or odor coming out from it. Doing so may cause ignition or explosion.

Insert the battery pack to the HMD in correct direction.

Connecting incorrectly might cause explode, ignition or overheat. Do not force the battery pack into the product. If cannot insert, check the connecting part of the battery and the product.

The battery pack is a consumable item. If the performance of a

battery pack does not recover after charge, the battery pack is at the end of

■Precautions of battery charger, AC adaptor and cables

its service life. Failure to do so may cause overheating, ignition, rupture or leakage. Note that the length of service life varies depending on the usage condition.

Stop charging if charging takes a very long time compare to usual.

Failure to do so may cause overheating, ignition, rupture or leakage.

Follow the instructions on the manual to dispose the product. Check with local codes for possible special disposal instructions. A Lithium-ion battery is used in the product. Do not dispose of batteries in a fire. They may explode.

Do not use at other voltages than the specified power supply voltage.

Doing so might cause fire, overheating or electric shock. ・Battery charger

DC-IN connector: DC12V MicroUSB connector: DC5V

・AC adapter: AC100V to 240V

Insert the power plug of into the wall outlet all they way. Incomplete

insertion of the power plug might result in electric shock or fire caused by overheating and ignition. Do not use when specified charging equipment is damaged, or a power outlet is loose.

Do not overload an electrical circuit. Do not use power outlets or

wiring apparatus beyond its rating. Also, exceeding rating, for example, by

connecting multiple devices to a single power strip may result in electric shock, injuries, damage or fire.

Do not short the charging jack while it is connected to the outlet. Do

not touch the charging jack with a part of your body such as your hand or finger. May cause an electric shock, short, fire, injury or fault.

Do not touch the battery charger for a long time while power is being

supplied from an external source. Doing so may cause a low-temperature burn.

When disconnecting the power plug from the outlet, do not pull the

AC adaptor or cord with an excessive force. Pull the AC adaptor or cord horizontally to disconnect.

Failure to do so may cause a fire, burns, injury or electric shock.

When disconnecting the power plug from the outlet, do not pull the

cord. Instead, hold the adaptor to disconnect. Pulling the cord may damage the cord and cause a fire or electric shock.

Do not touch the adapter cord or power plug with wet hands.

May cause an electric shock

Do not strain the base of the cable by tightly wrapping the cord

around the AC adaptor. Cable core may be exposed or disconnected. Doing so may result in an

electric shock or fire.

Do not apply a strong force by pulling the AC adaptor strongly while

it is connected to the outlet. May case injury or a fault.

Do not drop or apply a strong force or hard shock to it. Internal

substrate might be damaged. Moreover, do not use if the AC adaptor or cable is deformed, cracked or damaged. May case a fault, electric shock or fire.

Wipe off any dust or particles that accumulated on the power plug or

the connection between the AC adaptor and a cable by using a dry clean cloth. Failure to clean the dust may cause a fire, burns or electric shock. Do a cleaning inspection once a year.

Always remove the power plug from the outlet when cleaning the

equipment. May cause fire, damage or electric shock.

Battery charger is not waterproof. Use it where any fluid (e.g.

water, seawater, etc.) will not splash. Doing so may cause overheating, fire, electric shock or short-circuit resulting in a fault. If the fluid is on the battery

charger, remove the power plug from wall outlet immediately.

Never use the battery charger in humid places such as bathrooms.

Doing so may cause electric shock or a fault.

Always remove the power plug of the battery charger from the outlet

when not using it for an extended period of time. Moreover, remove AC

adaptor from the battery charger. Failure to do so may cause a fire.

Do not use the AC adaptor, cable or power plug if it gets damaged.

May cause an electric shock or fire.

When you insert and remove the power plug of the AC adapter from

power outlet, do not contact a metal strap or other metal objects with the jack. May cause fire, burns or electric shock.

Do not place heavy objects on the cable. Doing so may cause injury,

fire or electric shock.

Do not damage, modify, heat, twist, pull or place a heavy object on

the cable of the specified charging equipment. Do not use a damaged cable. Doing so may cause an electric shock, short circuit or fire.

Part

Material

Surface treatment

Head Mounted Display

Display panel

Acrylate resin

AR coating

Display cushion

Synthetic leather

Power key, home key

PC resin

Acrylic UV curable coating

Exterior case

PC resin + ABS resin

Acrylic UV curable coating

microUSB connection

PC resin + Polyester

silicon resin

Acrylic UV curable coating

microSD card slot

PC resin + Polyester

Acrylic UV curable coating

Earphone connection

PC resin + Polyester

silicon resin

Acrylic UV curable coating

Diopter adjuster cap

PC resin + Polyester

Acrylic UV curable coating Hook-and-loop fastener

nylon

screw

Stainless steel

trivalent chromate coating

label

polyester

Fitting belt

Head adjuster

polyethylene

Belt attachment

polypropylene

Side cushion

polyester

Top band(clip)

Polypropylene(POM

Front band

synthetic rubber

Helmet clip

body

PC resin + ABS resin

Shaft & shaft lock

Stainless steel

Screw

POM resin + Stainless steel

Material List

cap

elastomer resin +

elastomer resin + silicon resin

jack cap

elastomer resin +

elastomer resin + silicon resin

resin)

Knurling screw

Stainless steel

Battery pack

Body

PC resin

contacts

Nickel

Gold plating

Label

polyester

Battery charger

Body

PC resin + ABS resin

contacts

Beryllium copper

Gold plating

Wearable Keyboard

body

PC resin + ABS resin

Acrylic UV curable coating

key

urethane acrylate

UV curable coating

wearable keyboard

Styrene/ Butadiene

microUSB connection

cap

thermoplastic elastomer

Screw

steel

screw

Stainless steel/

trivalent chromate coating

Handling precautions

belt

rubber

This product is to wear on a head and is designed to have the motion space. Please be careful to have a sufficient distance so that you will not get caught in a machine such as robot arms while wearing this product.

●Do not put conductive materials (metal pieces, pencil lead, etc.) inside the product, keyboard and battery charger.

●Do not drop the product, keyboard, battery charger, AC adaptor or subject it

to shocks when carrying. Protect from excessive force or vibration by placing it in a bag.

●Adjust the arm of the product so that the display will be about 3cm away from and in front of your eye.

●Adjust the display to left, right, up or down in order to visually recognize

the four corners of displayed image.

●When the display is placed in front of an eye, the eye is blocked by the

display. When it's necessary to secure the sight, move the display to below your eye. If you are not looking at the display, shift the arm to the side.

●Do not operate the product while walking, running, driving a car, motorbike or riding a bicycle. May cause an accident.

●Do not use the product in an intensely shaky or unstable. May cause dizziness, nausea, headache or motion sickness.

●When you do some work while looking at the screen, be mindful of any

objects in the areas around your feet, hands and overhead. Please be careful about an accident by fall, an injury by fall and a falling object.

●Seeing an image that has large degree of shaking, an intensive blinking and intensive movement may cause dizziness, nausea, headache or motion sickness.

●May cause harm to your eyes if there is a big difference between brightness

of a display and ambient light.

●Be careful with obstacles and other people when there are many vehicles or people, a crowded place or a narrow place.

●Seeing the display continuously for a long period of time may cause eyes to fatigue. Please get moderate rest periodically.

●It is recommended to get rest since peripheral visual field narrows by fatigue after use. Drive or ride safely when driving a car, a motorcycle or a bicycle after use.

●Those who are 15-year-old or younger should not use the product since there may be an adverse effect on their visual function.

●Do not use this product if a person had a convulsion, epileptic's attack or loss of consciousness by flash of lights. This product may cause similar symptoms.

●Do not use this product if you are in a poor physical condition. Using this product may worsen your physical condition.

●Do not use this product if you have a disorder or deficiency in your eyes. May aggravate squint, weak eyesight or anisometropia.

●Stop using the product immediately and rest until you feel better when you

are not feeling well or feel uncomfortable during use.

●People around you may hear your conversation when you talk on the phone using speakers. If it is not desirable, please use earphones.

+ 62 hidden pages