Bluetooth version, available for most of devices with Bluetooth function. Such Samsung i9300 i9500 n7300 S3 S4 Iphone4 Iphone5 Iphone 4S Iphone5G HTC One Blackberry2. Knitted material, fashion and keep warm with answer the phone in winter3. Set-in MIC, available for cell phone to transmit the

Bluetooth version, available for most of devices with Bluetooth function. Such Samsung i9300 i9500 n7300 S3 S4 Iphone4 Iphone5 Iphone 4S Iphone5G HTC One Blackberry2. Knitted material, fashion and keep warm with answer the phone in winter3. 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.4. Set-in Li-ion chargeable battery, charge via USB Cable, long stand-by time.5. Support display receiver battery on iPhoneTechnic data