More Details:<br><br> Features: \u2605Connect two devices at the same time. \u2605Bluetooth Protocol: With A2DP， AVRCP high quality stereo sound frequency transmission and long-distance control protocol and supporting APT-X. \u2605CSR 8645 Smart IC. \u2605Support to iOS battery display. \u2605English and Chinese voice prompt. \u2605Complete aluminum sound cavity. \u2605Advanced DSP for 3D high quality sound . \u2605With Microphone， volume control， next\/previous switching. \u2605Protein earmuff， soft and comfortable. \u2605Adjustable headbands.<br> Specifications:<br>          General Specification             Brand Name        HOCO             Model Number        HPW01             Color        Gold， Silver           Technical Parameters             Standby Time         200 hours             Charging Time        4.5 hours             Music Time        About 28 hours             Output Power        10mW             Driver Unit        40mm             Receive Sensitivity        110dB&amp;plusmn;3dB             Impedance        38&amp;Omega;&amp;plusmn;15%             Frequency Response        20Hz-20kHz             Bluetooth Version        V4.1+EDR             Bluetooth Protocol        A2DP， AVRCP and remote control protocol.            Transmission Range         About 10m   <br> Package  Included:<br>                  1 X HOCO Bluetooth Headset             1 X Charging Cable            1 X English Manual            1 X Headset Bag