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Button usage ：（See attached picture
）
1.
Volume up / previous
2.
Power button
3.
Volume down / Next
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■Basic Specification
Cable Length ： 610mm
Weight ：14. 3g（bare unit without packaging
）
Charging interface ：Micro USB
Button ： three （previous/volume up + next/volume down + power button
）
Battery Specification：3.7V/55mAh*2
Charging specs：Micro USB
Charging input ：5V/1.0A
Charging indication ： Red LED light is on all the time
Charging time: around 2 hours.
Successive talking time ： about 5-6 hours
Volume control：16 ranks, 3dB variation in each rank
Battery indication during working period: 100%-15%: blue LED light indicates the working status;
15%-5%: Red LED light indicates working status; Below 5%: Red LED light blinks quickly.
Working temperature： -20～70℃ during charging period.
Storage temperature ：-40～80℃
■ Speaker and MIC
Speaker diameter:Φ10mm
Impedance: 32Ω
S.P.L:110dB S.P.L.at 1KHz
Rated power: 100mW
Frequency Response: 100Hz-9000Hz
MIC type ： Capacitive
Microphone Unit:Φ4*1.5mm
Sensitivity ：S.P.L:-42±3dB
Impedance:≤2.2KΩ
Frequency Response: 30-16,000HZ
Operating voltage: 4.5V
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■ Bluetooth part:
Bluetooth chip ：CSR 8645
Bluetooth protocol version ： Ver.4.0
Profile：HSP1.2/HFP1.6
Remote control to the player
：
Volume up/down, Previous /Next
Device name：KABTHFCBLKA
Pairing code ：0000
RF transmit：+4dBm(Max)
Receiving sensitivity：-90dBm
Transmission Range (Hz) 20 - 20,000
Communication distance：about 10m
■Mechanical Reliability
Press button
：
200,000 times
Micro USB interface： 5000 times in and out
LED： brightness/light-leakage/luminosity must be the same
■Operation
Power ON： Press and hold the on/off button for 2 seconds, the red and blue LED light blinks in turn
and there will be ascending prompt tone from the headphone.
Power OFF： Press and hold the on/off button for 3s, red and blue LED light will be on simultaneously
and there will be descending prompt tone from the headphone.
Pairing: In the state of power-off, press and hold the on/off button for 3s, red and blue light will blink in
turn and the headset enters in pairing mode.
Answering calls: Press the on/off button to answer a phone call.
Ending calls: Press the on/off button during the phone call process.
Rejecting the phone number: Press and hold the on/off button for 2s when call is coming in.
Redial last phone number: Double click the on/off button, the headphone will dial last phone number
automatically and one Prompt tone will be heard from the headphone.
Volume control: In either music or conversation mode, hold the volume up or down button to increase
or decrease the volume continuously.
Previous/Next: In music mode, click the volume-up button once to skip to the previous song, or click
the volume-down button once to skip to the next song.
Pause/Play : In the state of music mode, click the on/off button to pause the music, then click again to
recommence playing.
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■LED Light indication
：
Charging – Red LED light on when charging. Blue LED light on when charging finished.
Standby – Blue light quickly blinks twice every 2 seconds.
Talking – Blue light blinks continuously.
Music mode – Blue light blinks twice every 1 second.
Power shortage – Red light blinks with prompt tone.
Pairing mode – Red and Blue lights blink in turn.
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