1,Professional mini speaker 2.best music speaker 3,design smart,mini and cute USB Mini speaker ,Work with all sound source with 3.5 audio interface product like : MP3 ,Computer ,mobile phone ,CD player etc 1.Frequency Response: 60HZ-20KHZ 2.Rated Output: 2*2.2W 3.Power:5V/1A 4.SNR:>82dB 5.Shell Material: PVC 6.Size:110*67*70MM 7.PKG Size(carton):170*100*95MM USB 2.0 mini speaker DN-015