REMAX BUSINESS HD VOICE BLUETOOTH HEADSET
Bluetooth Version: V4.1
Communication Distance: 10M
Impedance: 16±15%Ω
Sensitivity: 110±3dB
Frequency: 50-10KHz
Charging Voltage: DC 5V
Working Voltage: 3.7V
Battery: 55mAh (Rechargeable polymer battery)
Size: 51*13*9.15mm
G.W: 6.75g