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