Wireless Version: 5.3
Wireless Frequency: 2402MHz-2480MHz
Operation range: 12M
Speaker Diameter: 13mm
Impedance: 32Ω
Sensitivity: 112dB±3dB 1KHz
Mic Speaker Sensitivity: (-42)±3dB
Battery: 35mAh
Music Play: 6H
Talking: 3H
Charging case battery: 320mAh
Charging time: 1.5H