Model:R808 Description: The unique fold-up design protects the speaker and makes it easy to carry around. Power supply: battery (AAA 1.5V*4) DC 5V(USB Cable for pc). Or AC power Speaker unit: 52mm*2w*2(4 ohms) Signal cable:22cm with 3.5mm ST Goldplated plug Dimension:207(w)*50(d)*62(h)mm(open dim.)112(w)*62*35mm(fold) WITH REMOTE CONTROL&CHARGING