Output:4R 3W   Frequency response:90-20KHz  Impedance:4Ohms   Charging voltage:5V   Operating distance:10m                         Standby time:10-15hours    Product size: 66*66*78mm    Battery capacity:500mAh(can play 5 hours)  S/N:85dB                                   Materail:Aluminum+ABS                               *Support Bluetooth,Call,TF card, USB charging, Power supply dode                      *Small body,great sound,unique design

*RDA bluetooth resolution