City Zhi Hang Technology BB User Manual

Bluetooth Bone Conduction Headphones
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manual carefully so that you can better use it correctly.
Product description
● Wiring diagram
1)Volume Plus or Next song
2)Multi-function keys or switch key
3)Volume down or Previous song
4)
Charging interface
1) Volume Plus or Next song: Adjust the volume of the sound plus, press to switch the
next song.
2) Multi-function keys or switch key: can answer, pause, hang up and other functions,
combined with other key operation to achieve a variety of instructions, while long
press to achieve boot or shutdown and other instructions.
3) Volume down or Previous song: adjust the volume of sound reduction, long press
to switch the Previous song.
4) Charging interface: Micro 5pin charging interface
5) Microphone: Microphone input
6) Indicator light : Work indicator
6)Microphone
5)Indicator light
Wearing
External ear canal
Ear bone
Bone conduction
Air conduction
eardrum
The ear canal
Brain auditory nerve
Cochlea
Bone conduction sensors: wear in the temporal bone of the ear, no need to plug the
ears (plug the binaural sound more clearly).
Basic parameters
1) Bluetooth version: BT 4.1
2) Type: Bluetooth Bone Conduction Headset.
3) support equipment: mobile phones, computers and other built-in Bluetooth
communication module of all equipment.
4) transmission distance: barrier-free transmission distance greater than 10M.
5) Frequency response range: 20 ~ 20KHZ.
6) working time: more than a week standby, continuous play more than 6 hours.
7) bare metal weight: 35 ~ 40g.
8) Certification: FCC, CE, RoHs.
Instructions:
● First boot pairing: In the off state,Long press the play pause button for 4 seconds, the headset appears blinking blue and red lights alternately, then headset into the automatic Bluetooth pairing mode. Open the phone and other smart devices, from the Bluetooth list, find "BT_BK", and click on the connection; to confirm fully connected, the headset voice prompt "Connected".
● Headphones: When the power is off, press the button for 3 seconds, the blue light will be on and the "powering up" beep will sound. The headset will automatically enter the Bluetooth connection mode and the headset will automatically connect to the confirmed intelligent device.
● Turn off the headphones: Power on, long press the button for 3 seconds, until you see the red light, and accompanied by "powering down" tone.
● Answer the call: The first call, the headset will be vibration, and accompanied by music tips; click the open key to complete the answer; The second call, double-press, hang up the first phone, connected to the second call, short press, keep the first phone, connected to the second phone.
● Hang up: During the call, click on the key to complete hang up; During a call, dual press, the phone and headset audio switch.
● Reject call: The first call, the headset will be vibration, and accompanied by music tips; press the switch key for 2 seconds to complete hang up; The second call, press and hold the key for 2 seconds, refused to take the second phone
● Mute / Unblock Mute Call: During the call, press and hold the volume key for 3 seconds, and the green light will be accompanied with a beep tone indicating that the silent mode is on or off.
● Disconnection and reconnection:
When the headset is disconnected from the phone or when the phone is turned off,
the "disconnect" tone sounds. When you return to the acceptable range, press the
ON / OFF key to reconnect the phone and the "Connected" , Or re-boot will
automatically back to the relevant Bluetooth devices.
● Play music:
Standby time, click the button or on the phone to operate the player;
● Music pause:
When playing music, click the open key, music pause;
● Volume plus or next:
Short press the button, the volume increases, long press the button to switch to the
next song; the maximum volume associated with "Di Di Di" tone
● Volume down or Previous:
Short press the button, the volume decreases, long press the button, switch on a song;
the minimum volume associated with "beep" beep
● Restore factory settings:
Shutdown state, often press the open button for 6 seconds, 3 consecutive red light
flashes, that restore factory settings;
● Dual connection is turned on and off:
In the pairing mode, press the key + volume plus key for 8 seconds, the double
connection turns on, the blue blinks 3 times, and the red and blue light alternately
blinks, accompanied by a "beep" sound.
In pairing mode, press the key + volume down key, press 8 seconds, double
connection is closed, red flash 3 times, red and blue lights flashing alternately,
accompanied by "toot toot" sound.
● Two mobile phone connection steps:
1) If a mobile phone is connected to the headset, disconnect it from the phone and
connect it to the headset.
2) At the same time press the headset key + volume plus key and release, headset red
and blue LED flashing alternately, re-enter the pairing state.
3) open the second phone Bluetooth and search for new devices, find the "BT_BK",
according to normal operation and headset connection.
4) re-operation of the first mobile phone can be re-connected to the headset.
5) At this point the two handsets connected headset operation is complete.
● Audio parameter switching:
Press the volume plus + volume reduction, long press 3 seconds, the green light and
accompanied by a "beep" tone, indicating that the parameter switch is successful.
● Last code re-pull:
Standby or play music, double-click the open key, will automatically pull out the last pull
out of the phone.
Headset charging
The headset is recharged with a USB charging cable. When charging is complete, the
LED indicator changes from red (steady) to blue (steady).
Note:
● low battery voltage: 3 seconds flashing red light, 5 minutes alarm time, accompanied
by a "beep tick" tone.
● Pairing time: 5 minutes, 5 minutes is not connected to the phone automatically exit the
code after the state.
● No phone connected to the phone, automatically shut down after 15 minutes.
Common fault analysis and solution
●Bluetooth device can not find "BT_BK"
1) Check if the headset is in pairing mode.
2) Make sure that the headset is connected to other devices and can not find it when
the device is online.
3) to confirm there is no charging or other strong sources of interference, charging
headset can not be normal online.
4) to ensure that the device also has power, you can charge a period of time after the
re-try.
5) Check if there is no obstacle or distance between the devices.
●No sound from headphones
1) Make sure that the connection between the headset and the device is normal,
whether the distance is within the normal range, and whether there is a strong
interference source around the shielding device.
2) to confirm whether the headset has enough power, in the normal boot state.
3) Check whether the connected device itself is abnormal.
4) Reboot after connection and try again.
●Charging No indicator light
1) Make sure that the charging device is properly connected.
2) If the device is not used for a long period of time, the first charge may be switched
on for several minutes before it lights up.
Above if still does not solve your problem, it is recommended to contact you to buy
the dealer in a timely manner to provide you with technical support and after-sales
service, once again thank you for your support!
This device complies with Part 15 of the FCC rules. Operation is subject to the following two
conditions: 1) this device may not cause harmful interference, and 2) this device must accept any
interference received, including interference that may cause undesired operation.
Note: 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 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 by one or more of the following measures:
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 the receiver is
connected.
Consult the dealer or an experienced radio/TV technician for help.
CautionChanges or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.
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