Specifications:

Bluetooth Version: V4.2+EDR
Frequency: 2.4026GHz-2.480GHz
Transmission distance: 30ft or so
Transmission distance of MIC: ≤3 ft
Li-ion Battery:3.7V/120mA
Charging time:2 HRS
Standby time:10 Hrs
Continuous working time: about 6-8Hrs
Bluetooth name:BT-01
Size:Fits for head circumference 56-62cm
Speakers can be taken off so that you can wash the hat

 

 

Package includes:

1 x Bluetooth Music Hat
1 x 40CM Micro USB Charging cable