SD Card Speaker

Specifications:

*output power: RMS  2W *2                           

*Frequency response:100HZ---20KHZ         

*Driveunit:50mmx2/4Ω      

*S/N Ratio:   ≥85db                      

*Dimension:W180x D83x H68mm                           

*lithium battery :3.7V 500mA                                    

*Built-in high-capacity lithium ion rechargeable battery                          

*Transparent plexiglass outer covering   

*SD card reader+USB decode