Mini Speaker/Sound Box: 1) Output Power: 3W*2 2) Battery capacity: 620mA 3) SNR>75db 4) CE, ROHS, FCC Portable Mini Speaker: Features: 1) This speaker allows you to stream music from any audio devices, including mobile phones, MP3/MP4 players, CD, DVD PC's, laptops and so on via Aux jack. 2) Micro SD card supported, can play MP3 format songs in Micro SD card(up to 16GB). 3) USB HOST function, can ...