Model: FG-66 (Jie Li)
Battery capacity: 3.7V/300mAh with protection board
Bluetooth version: V5.0+EDR
Charging time: 1-2 hours
Color: black, green, blue, gold, red
Play time: 8 hours maximum volume
Frequency response: 20HZ-20KHZ
Weight: bare metal 161g, with packaging 280g
Output power: 40mW
Function: Wireless Bluetooth / with FM / card / computer headset
Transmission distance: 10-30 meters barrier-free
Interface: 3.5mm audio hole, T-mount, USB 2.0
Signal to noise ratio: 85dB
Packing list: Charging cable + audio cable + manual + box
Distortion: 1%
Box gauge: 68*33*39cm/50PCS
Impedance: 32Ω
Color box size: 16*13.5*7.5cm