Bluetooth Version: V4.2
Driver UnitΦ40mm
Impedance: 32Ω
Sensitivity: 105 ±3dB
Frequency Response: 20-20 KHz
Receiver Distance: Up to 10 meters
Working Time: Up to 6 hours
Support: TF/Micro-SD card
Battery:Rechargeble Lithium-battery(3.7V/300mAh)
ChargingUSB2.0
Clours:Black, Blue, Purple, Red,Yellow
Bluetooth Series