Driver Unit: Φ10mm
Impedance: 16ohms
Sensitivity: 92±3dB S.P.L. at 1KHz
Frequency Response: 20Hz-20,000Hz
Max. Input Power: 3mW
Version: 4.1+EDR
Bluetooth Class: II
Mono/ Stereo: Stereo
Chipset: CSR
Battery: built in lithium battery
Microphone: built in Mic
Charging Time: 2 hours
Talk Time: 4-5 hours