Model No.: SL1778
Product size: 250 X 228 X 450MM( L X W X H )

Function: Bluetooth  / USB / TF Card / FM Fadio / Aux 
LED display / Microphone  / TWS Pair / Remote Control

Output power: 20W
Frequency response: 38HZ-20KHZ
Power supply: DC 5V
Audio Input                                                      
Input Impedance : 10k Ω
Battery capacity : 3000mAh

 MOQ1000pcs