Detailed Product Description 1. This compact travel speaker system is ideal for use at the office, home, or anywhere you go. 2. You can enjoy high quality stereo sound produced form the plastic speakers. 3. Cosmetically designed to match the iPod, When used with an IPOD, it will also act as a stand. . Power by: AC adaptor: Out put 9V Drive Units:50mm x 2 Output Power: 6W (Max) Frequency:200HZ-12KHZ Impedance:4 Ohm Sensitivity:89 dB THD: <0.1% Material: ABS Plastic Dimension: W68mm?D32mm?H185mm N.W. 0.5kg