Bluetooth Version: V3.0+EDR Frequency: 2.4026GHz-2.480GHz Transmission distance: 30 ft 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 hat Quantity:1pc Color: Deep Grey,Light Grey,Beige,Black,Black+Grey,White+Blue,Red+Coffee,Grey,Blue+Grey,Watermelon Red,Watermelon Red+Blue,Blue. Note: 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 Hat 1 x Charging cable