2. V3.0 EDR Bluetooth version, available for most of devices with Bluetooth function.
3. Music hat with double earphone!
4.  Knitted material ,fashion and keep warm with answer the phone in winter.
5. Set-in MIC, available for cell phone to transmit the speaking phone to your audio devices directly so that the

2. V3.0 EDR Bluetooth version, available for most of devices with Bluetooth function.
3. Music hat with double earphone!
4.  Knitted material ,fashion and keep warm with answer the phone in winter.
5. Set-in MIC, available for cell phone to transmit the speaking phone to your audio devices directly so that the user can hand free answering phone up via the device.
6. Set-in Li-ion chargeable battery, charge via USB Cable, long stand-by time.
7. Support display receiver battery on for  iPhone.
8. When you need to clean the Music hat, you can remove the headset from the hat