Mobility Sound Technology BTH 900 User Manual

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BTH-900

radio

Bluetooth Dual Muff Headsets

The BTH-900 are Bluetooth Muff Headsets designed for use

with a MobilitySound Bluetoot h adapte r and a two-way

(each sold separately)

BTH-900

Made in Taiwan

Federal Communication Commission Interference Statement This equipment has been tested and found to comply with the limits for a Class B

digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to

provide reasonable protection against harmful interference in a residen tial

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 by one of the following mea sur es:

.

erienced radio/TV technician for hel

the receiver is connected.

-Reorient or relocate the receiving antenna.

-Increase the separation between the equipment and receiver.

-Connect the equipment into an outlet on a circuit different from that to which

-Consult the dealer or an ex
This device complies with Part 15 of the FCC Rules. Operation is subject to the

followin g two conditions: (1) This device may not cause harmful interference, and

(2) this device must accept any interference rece ived, including interference that

may cause undesired operat ion .

This equipment complies with FCC RF radiation exposure limits set forth for an

uncontrolled environment. To maintain compliance with FCC RF exposure

compliance requir eme nts , please avoid direct contact to the transmitting ant enna

FCC Caution: Any changes or modifications not expressly a pprov ed by the party

responsible for compliance could void the user's authority to operate this

equipment.

during transmitting.

CHARGING THE HEADSET

The MobilitySound BT Muff Headset has an internal Lithium Ion recharg eab le battery pack
which must be charged prior to operation. A fully charged battery will provide approximately 10
hours (or more) of operation before needing to be recharged. However, oper ati ng time can
vary depending on usage and the condition of the battery pack. Recharge the battery regularly.

To charge the MobilitySound BT Muff Headset:

1.

Ensure the Headset is turned off using the Power Button.

2.

Plug the supplied wall charger into a standard 120 volt AC outlet.

3.

Plug the charge cable into the AC wall charger and then into the charge jack on the
Headset. You will need to remove the protective rubber cover tha t is inserted into the charge
jack. (To prevent dust and moisture from damaging your Headset, always ensure this cover
is in place when you are not charging th e H ea ds et . )

4.

Once the charging process has be gu n, the LED indicator on the Headset will sh o w a
continuous red light. When the battery is done charging, the LED light will turn off.

5.

Typical charge time is approximately 4 hours. Actual charge time will vary depending
on several factors including the battery’s charge state, condition, and age.

6.

Disconnect the charger from the lapel mic when charging is completed.

Charging Cautions:

-

Use only the wall charger supplied by
the manufacturer. Do not use any other
charger.

-

Do not use a wall charger that
appears to be damaged. (Example:
frayed wires, melted plastic, etc.)

-

Do not tamper with or modify
the Headset or charger.

-

Always turn the power switch to the off
position when charging the Headset.

P-CBL-USB-MICRO charger cable and P-CHA-BT-USB
wall charger included with the Headset.

3

Controls and Connections

HEADBAND / HELMET MOUNTING CLIPS

Depending on the model, the headset
may be furnished with moun ting clips
for attaching to a hard hat (BTH-800),
over-the-head band (SPM-700).

PUSH-TO-TALK BUTTON

When the Headset is paired with
a Mobili t ySound Blu etooth

holding this button

adapter,
down activates the Push-to­Talk feature of the two-way
radio.

The PTT button on the

Road, ZhongHe Dist.

st

www.mobilitysound.com

New Taipei City 23585, Taiwan

Mobility Sound Technology Ltd.

5F, No.100, Jian 1

Tel: [phone] Fax: [phone]

BTH-900 is different than

the BTH-700 and BTH-800.

VOLUME UP/DOWN BUTTONS

These buttons are used to adjust
the volume level of rece ived calls
heard through the Headset.

MUFF EARPHONES

Received calls are heard
through these Headset
speakers.

PAIRING THE HEADSET WITH A MobilitySound BT ADAPTER OR CELLULAR
TELEPHONE

Before you can use the MobilitySound BT Muff
Headset,

it must be paired with the
MobilitySound BT Bluetooth
cellular telephone t hat you wish to use.

To pair the Headset with a MobilitySound BT Bluetooth radio adapter:

1.

Begin by first making sure that the Headset, BT radio adapter, and the two-way radio the adapter is

connected to are all powered off. You should also power off any nearby Bluetooth devices.

2.

Place the BT radio adapter into pairing mode by following the instructions that were provided with that device.
On most BT adapters this is done by pressing and holding the PTT/Multifunction
turning the two-way radio on. Continue to hold the button down until the LED indicator on the adapter
shows two blue flashes every second.

3.

Press and hold down the Power Button on the BT Muff Headset for five seconds, until the LED on the
Headset flashes RED-BLUE-RED-BLUE continuously in sequence. The Head set is now in pairing mo de.

4.

After a few seconds, the two devices should synch to one another. Once the Headset and BT radio
adapter are paired with each other the status LED on the adapter will show a constant blue light for
three seconds. The LEDs on both the adapter and Headset will then show one blue flash every few
seconds.

5.

If the BT radio adapter does not detect the Headset within 60 seconds of being put into pairing mode,

the adapter will exit the pairing mode and resume normal operation without synching to the .

6.

Once successfully paired, you will be able to operate your 2-way radio using the BT Muff Headset.

To pair the Muff Headset with a cellular telephone:

The BT headset is capable of working with a Bluetooth-enabled cellular telephone. The Headset is even
capable of simultaneously pairing with both a BT radio adapter and a cell phone, enabling you to use
the same Headset for both radio and telephone calls.

1.

When pairing the Headset with a cellular phone, first make sure that the headset and all other

nearby Bluetooth devices are powered off before beginning.

2.

Press and hold down the Power Button on the headset for five seconds, until the LED on the adapter

flashes RED-BLUE-RED-BLUE continuously in sequence. The headset Headset is now in pairing mode.

3.

Activate the B luetooth feature on your phone.

4.

Activate the “scan/discover new Bluetooth devices” feature on the phone. The exact steps needed to

do this will vary depending on the brand/model of phone you are using.

5.

Select the Headset from the list of Bluetooth devices shown on your phone. If the phone asks

for a passcode, enter “0000”. The phone may also prompt you to confirm the connection.

6.

After a few seconds, the two devices should synch to one another. Once the BT Headset and phone
are paired with each other, the status LED on the microphone will revert back to a single blue flash
every few seconds.

7.

Once successfully paired, you will be able to make and receive telephone calls using the Headset.

an

USB CHARGE JACK

This micro-USB jack is used to connect
the supplied charge cable to the Headset
in order to recharge the device’s internal

lithium-ion battery pack.

adapter and/or

POWER BUTTON / STATUS LED

Pressing this button for one

turns the Muff Headset

second
or off. This button is also used to
place the Headset in pairing
mode so that it can be connected
wirelessly to a BT adapter or
cellular telephone. The status LED

POWER BUTTON / STATUS L ED

behind the button flashes

Pressing this button f or one

that let the user know

messages

second turns the Muff Headset

the current status of the device.

on or off. This button is also used

Complete list of LED, see pg 6.

to place the Headset in pairing
mode so that it can be connected
wirelessly to a BT adapter or a
cellular telephone. The status
LED behind the button flashes
messages that let the user know
the current status of the device.
Complete list of LED, see pg 6.

ADJUSTABLE BOOM MICROPHONE

The Muff Headset boom microphone
picks up the user's voice audio to send
over-the-air.

2

4

PHONE BUTTON

When the Headset is paired
with a cellula
this button can be used to
manage telephone
functions such as answering
or hanging up a call.

button on the adapter while

on

a

telephone,

Reconnecting a Previously Paired Headset and Radio Adapter/Cellular Phone

Once the MobilitySound BT Muff Headset and Bluetooth radio adapter and/or cellular telephone have

successfully paired together, both devices will remember that connection. The Headset and

been
radio adapter/phone will attempt to reestabli sh their link whenever they are both powered on an d in
withi n range of each other. Re-establishin g this connection can take 10-60 seconds.

Multi-Pairing Operation

If you wish to use the multi-pairing feature to connect the Headset to bo th a MobilitySound BT Bluetooth
radio adapter and a cellular phone, you must first separately pair both the Head set with the radio
adapter and

Once the two devices have been paired individually to the Headset, simply power the both the Headset
and two-way radio/Bluetooth radio adapter on, and then enable the Bluetooth feature on the phone.
Within a few seconds, all three devices should connect to each other, enabling operation.

NOTE: When you are on a phone call, signals received by the two-way radio will not be heard.
Additionally, if you press the PTT button on the PRYMBLU headset while you are on a phone call, the
two-way radio will transm it, however no transmit audio will be sent over the air , since microphone audio
is being routed to the cellular phone.

TESTING AND USING THE Mobility Sound BT MUFF HEADSET

Once your Headset and MobilityS oun d BT radio adapter and/or cellular pho ne have been paired
together:

Received signals will be heard through the speakers in the MobilitySound BT Muff Headset. The
volume of received calls can be adjusted using the Volume Up and Volume Down buttons on
the Headset or the volume control on the two-way radio or cellular phone.

The operator’s voice is picked-up by the boom microphone in the MobilitySound BT
Muff Headset.. Push-to-Talk can be activated one of several different ways:

•

•

•

•
separately). Note that if you are using a MobilitySound BT BT-PTT2, you will first need to pair
the radio adapter with the PTT using the instructions located in the MobilitySound BT PTT
User’s Guide.

Telephone functions are provided by using the Headset’s Phone Button.

the Headset with the phone using the procedures shown above.

By pressing and holding the PTT button on the MobilitySound BT Muff Headset.
By pressing and holding the Talk/Multifunction button on the MobilitySound BT Adapter.
Using an optional wired PTT that is plugged into the MobilitySound BT Adapter.
Using an optional MobilitySound BT Wireless Bluetooth PTT (model BT-PTT2, sold

Call State Button Press

Incoming call Press Phone Button once
Incoming call Press and hold Phone Button for5seconds
On a call Press Phone Button once
No call

Double press Phone Button Redial last number

5 6

Function

Answer call
Reject call
Hang up call

Continued on next page

SPECIFICATIONS

Dimensions: 240mm X 230mm X 160mm (SPM-900-EMB)
Weight: 410 grams (SPM-900-EMB)

Bluetooth Version:

Bluetooth Profiles:
Bluetooth Power Class: Class 2
Sensitivity: -90 dB
Range (Typical): 10 meters (30 feet)
Built-in Battery: 3.7V, 330mAH Lithium-Ion
Standby Current Draw: 6 mA
Standby Time: 50 hours (max)
Operating Time: 10 hours (max)
Operating Temperature Range:

3.0
HSP, HFP, A2DP, AVRCP

-15° C to + 50° C

You can also activate your phone’s voice dialing feature by pressing and holding the Phone Button on
the side of the Headset for three seconds. (This function works only when the microphone is NOT also
connected to a two-way radio.)

When the Headset is paired to a MP3 music player or to a cellular phone only, the following but tons are
remapped for playing music.

Button Press

Phone Button
Volume Up Adjust music vol ume up
Volume Down Adjust music vol ume down
Double-press Volume Up
Double-press Volume Down

STATUS LED MESSAGES

The meanings of the various status LED messages shown by the MobilitySound
BT Muff Headset are shown on the followi ng tab le :

LED INDICATION

No indication
Blue-Red-Blue-Red continuous Pairing mode
Two short blue flashes
Three red flashes, then off
One blue flash every 2 seconds Not paired or link lost
One blue flash every 6 seconds Normal (paired) operation
Continuous red when PTT pressed PTT operation
One red flash every 6 seconds Low battery
Continuousred(whenconnectedto charger) Charging
No indication (when connected to charger)

Function

Play/Pause Music

Skip to next track
Skip to previous track

MESSAGE MEANING

Device is off

Device turned on
Device turned off

Charging is finished

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