- Knitted material， fashion and keep warm with answer the phone in winter- 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 Li-ion chargeable battery， charge via USB Cable， long stand-by time.Specifications:- Bluetooth Version: V3.0+EDR- Frequency: 2.4026GHz-2.480GHz- Transmission distance: 30ft or so- Transmission distance of MIC: ¡Ü3 ft- Li-ion Battery:3.7V/120mA- Charging time:2.5 HRS- Standby time:60 Hrs- Continuous working time: about 5Hrs- Bluetooth name:Magic Hat- Size:Fits for head circumference 56-62cm- Speakers can be taken off so that you can wash the hatQuantity: 1pcNote: Due to the difference between different monitors， the picture may not reflect the actual color of the item. Thank you!Package includes:1 x Bluetooth Music Hat1 x Charging cable YUNFENG