*Impedance: 16 Ohm

*Sensitivity: 92 Db

*Frequency response: 20-20000 Hz

*Play music time 2.5 h (hours) 

*Talking time 3 h (hours) 

*Standby time 80 h (hours) 

*Battery capacity 40 mAh 

*Charging time 1.5 h (hours)

*Wireless distance: 10 m 

*Removable wire: No 

*Bluetooth version: 4.2 

*Bluetooth features: A2DP, AVRCP, HFP, HSP