High-power Handheld Sales Speaker Outdoor Propaganda Recording Charging Loudspeaker

Product information:
Power supply mode: Built-in lithium battery
Frequency range: 40Hz-20KHz
Interface Type: USB
Package List: Loudspeaker lithium battery handheld microphone
Applicable people: general
Battery capacity: 2200 mA
Shell material: ABS
Operation mode: Button
Function: Bluetooth USBTF card