External portable mini speaker TS-SD07 Features: 1.External portable mini speaker. 2.Line in for MP3 Cell Phone/MP4 Player/ CD Player/Laptop/PC All iPod 3. LED display 4. LED switch and Volume control easily! Specification: Power AAA Batteries or DC adapter or USB port, 2 x 3W, 2 x 4 OHM, 6V, 300-800A, 100-20KHz, Dimension 160 x 100 x 280 MM Packing: Portable Speaker USB to DC cable