Output:4R 3W    Frequency response:90-20KHz  Impedance:4Ohms     Charging voltage:5V  Operating distance:10m   Standby time:10-15hours    Product size: 59*59*47mm   Battery capacity:500mAh(can play 5 hours)  S/N:85dB                                   Materail:Plastic                                    *Support Bluetooth,Call,TF card, USB charging, Power supply dode                                *Small body,great sound,unique design

*RDA bluetooth resolution

*Multiple colors for choice