Support SD/MMC card and MP3 file
Support 3.5mm,IPOD/MP3/MP4and PC or Mobile phone
Li-ion battery
Rated Power:RMS2W*2
S/N:≥85db
Output:4.2V/500MA
1 Output Power:3W*2 RMS
2 Frequency Response:90Hz-20KHz
3 Speaker unit:2"*2
4 sensitivity:≥75dB
5 SNR:≥60dB