City Zhi Hang Technology BT DK User Manual
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Bluetooth bone conduction headphones manual
Important safety tips
Please read this tip and the instruction manual carefully before using it.
Please bring this product and instruction manual when submitting the product
to a third party.
● Protect your health and safety
Please do not let children or pets play the product or its packaging and
accessories, so as not to eat;
Please do not close to the pacemaker and other items susceptible to magnetic
field, especially medical supplies.
● Protect the product
Store the product at room temperature, keep it dry, avoid prolonged exposure
to high or low temperatures or wet rings
In the territory
Please use the supplied accessories or accessories;
Please pay attention to control the input power supply voltage, so as to avoid
damage to equipment overload;
Use the product please gently, to avoid unnecessary collision;
When cleaning the appearance, use a dry soft cloth.
● battery warning!
This product uses lithium polymer batteries, such as improper use may lead to
fire or burns;
Please use the regular manufacturers to provide the charger (voltage 5V,
current 0.5 ~ 1.0A) or computer USB port pairs
This product is charged;
Prohibit serious collision with this product, serious impact may damage the
electronic board and battery.
●Specification and Disclaimer
This product is designed for portable equipment and high-fidelity systems;
Any use that is not specified in the instruction manual is considered to be
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an improper use of the product;
And shall not be liable for any loss resulting from non-standard or misuse or
other artificial causes.
Machine diagram
1: wearing head beam, using titanium - nickel memory steel wire
2: bone conduction horn
3: microphone hole
4: two-color indicator light ring
5: multi-function button / key
6: Micro 5pin charging interface
Accessories
● USB charging cable;
● User's Manual;
Basic parameters
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● Weight: bare metal 28 ~ 29g
● Headset type: Bluetooth bone conduction
● Bluetooth version: BT4.1
● Transmission distance: more than 10 meters
● Frequency response range: 20Hz ~ 20KHz
● Play time: standby more than one week, continuous playback is greater than 4 hours
● Charging time: 2 hours (preferably over 3 hours)
● Storage temperature: -30 ℃ to 80 ℃
● Operating temperature: -20 ℃ to 70 ℃
● Relevant Certification: RoHS, CE, Fcc
Wired instructions
● Line diagram
1) Volume key +: Short press to adjust the sound volume plus, long press to switch
the next song.
2) power switch / multi-function button: you can achieve the answer, pause, hang
up and other functions, combined with other keys to achieve a variety of instructions,
while long press to achieve boot or shutdown and other instructions.
3) Volume key -: Short press to adjust the sound volume minus, long press to switch
the previous song.
4) USB charging port: Micro 5pin charging interface
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