Support：Bluetooth,TF card,USB,FM,AUX,Coupleable，Display screen

Material: ABS plastic,Network Rail

Bluetooth specification: Bluetooth 5.0

Transmission distance: 10M 

Horn specification: 52mm 4Ω 5W

Power amplifier specification: 5W*2

Battery specification:1200mAh  18650 with Boost

Playback time: 3-4H