Features: - V3.0 + EDR Bluetooth version， available for most of devices with Bluetooth function
- Knitted material， fashion and keep warm with answer the phone in winter
- The hat can be washed
- 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
- Set-in chargeable battery， charge via USB cable， long stand-by time
- Power: 3.7V 100mAh battery Gender: Boys，Girls，Men，Women Package weight: 0.127 kg
Package Size(L x W x H): 26.00 x 11.50 x 3.50 cm / 10.24 x 4.53 x 1.38 inches Package Contents: 1 x Bluetooth Music Hat， 1 x USB Cable， 1 x English Manual