Product information :
Functions: card insertion, radio, dust prevention, fall prevention, voice prompt, call function
Interface type: USB
Frequency response range: 100HZ-20KHZ
Output power: 10~20W
Signal to noise ratio: ≥ 75dB
Power supply mode: built-in lithium battery
Channel: 2
Box material: plastic
Color: white, black

Size Information:
Specifications: L20 large (17 * 14.5cm), L30 small (14 * 11.5cm), L39 mini (8.5 * 7cm)

Packing list:
Sound box * 1