Q: For BT-103 how long is short-press, long-press, and extended-long-press?
A:  Short-press: 0-0.8 sec
     Long-press: 0.8-1.5 sec
     Extended-long-press: >1.5 sec

Q: My BT-103 headset is on (the blue LED is flashing), but why can't my cell phone finds it?
A: If your mobile phone is not connected with the headset but it's flashing, that means the headset is in standby mode, which is not searchable. First turn the headset off by extended-long-press the multi-function button (MFB), then turn it on by press the MFB for at least 5 seconds until you see the LED light on solidly (not flashing). From that on, you have 2 minutes to search and connect to the headset.
(For the BT-201 car kit, do the same thing but wait till both the blue and the red LED lights are flashing alternatively)

Q: How do I know if my cell phone is connected to my BT-103 headset or not when the LED is flashing?
A: When the headset's LED is flashing it means it's in standby mode. If your mobile phone is not connected to the headset the LED will flash every 3 seconds. If your mobile phone is connected to the headset, the LED will flash every 8 seconds.

Q: What is the operation range for the Bluetooth headsets?
A: For both BT-103 and BT-201, the normal operation range is 10m.

Q: How do I transfer the call from my BT-103 headset to the phone without ending the call?
A: Simply extended-long-press the MFB. The call will switch from the headset to the phone automatically and vice versa. The same goes for the BT-201 car kit.

Q: Why can't I use the voice-dialing function with my Bluetooth headset?
A: For both BT-103 and BT-201, the voice-dialing function only works if your mobile phone supports it.