... loudspeaker 3 input:Bluetooth,AUX IN,USB Bluetooth speaker detailed description and specifications1 , Products size: 75X70X55mm 2 , work power: 4Ω3W3 , Built-in lithium battery with 600 mAh ... bluetooth telephone 8 , can connect MP3/ MP4 / Iphone / Mobile phone / SD ,IF Card9 , Speaker use full antimagnetic design, do not interference to other goods portable bluetooth speaker, USB ...