1. V3.0+EDR Bluetooth version, available for most of devices with Bluetooth function.
2. There are 2 earphones on both side of the hat !
3. Knitted material ,fashion and keep warm with answer the phone in winter.
4. 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.
5. Set-in Li-ion chargeable battery, charge via USB Cable, long stand-by time.
6. Support display receiver battery on for iPhone.
7. When you want to wash the hat, just take the Motherboard out of the hat ( see the video)
8. That is Free size of the hat
1. Bluetooth: V3.0+EDR
2. Frequency: 2.4026GHz-2.480GHz
3. Transmission distance: 10M or so
4. Transmission distance of MIC: ?1 M
5. Li-ion Battery: 3.7V/100mA
6. Charging time: 2.0 hours
7. Standby time: Up to 60 hours
8. Continuous working time: about 3.5 hours
9. Bluetooth name: BT-03S
1 x Bluetooth hat
1 x Manual
1 X USB Cable