■ 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.
