User Instructions

Product Parameters
4. Reject incoming calls:
when a call comes in, press the function
button and hold it for 1 second. You can
reject incoming calls.
Bluetooth device name
FF216
Headset battery
Polymer lithium barrery 130mAh
Bluetooth Version
4.2
Working Voltage
3.2V-4.2V
Bluetooth bandwidth
2.4-2.48GHz
Bluetooth distance
10M
Speaker unit impedance
16Ω
Speaker unit bandwidth
20-20KHz
Speaker unit sensitivity
100db
Micphone sensitivity
-42±2db
Headset Conversation time
About 6Hours
Headset music time
About 6Hours
Headset’s standby time
More than 48 Hours
DC charging current
100mA
DC charging voltage
5V