Bluetooth Version: V4.2
Driver Unit:Φ40mm
Impedance: 32Ω
Sensitivity: 105 ±3dB
Receiver Distance: Up to 10 meters
Working Time: Up to 3-4 hours
Charging Time:2 hours
Support: TF/Micro-SD card
Battery:Rechargeble Lithium-battery(3.7V/400mAh)
Clours:Black, Blue, Red, Purple, Green
Bluetooth Series