Genius SP-Q160 Mini USB Speaker with Crystal Clear Sound Effect. RMS 6W. USB Powered. 3.5mm Aux In. Volume Control. Crystal Clear Sound Effect. SP-Q160 delivers high-quality room-filling clear stereo sound with volume control. It is perfect for any device with 3.5mm audio jack. It is super easy for you enjoy the music - just Plug and Play. Space-Saving Size With Aesthetic Design. It fits well beside your computer. Enjoy an uncluttered space at ease. Small enough that you can even take it on the go. Broad Compatibility for Any Device with 3.5mm Audio Jack. It works with pc computer desktop notebook TV smartphones iPhone iMac MP3 and other devices with 3.5mm audio jack. Simple Operation: USB plug and play no need for batteries or a power cord. Easy Access Volume Control: Conveniently placed controls on the back of speaker for instant volume adjustments. Model: SP-Q160 Iron Grey. Total Power Output: 2 x 3W RMS. Connection Out: USB Wired connection. Connection In: 3.5mm Audio Jack. Volume Control: Yes. Cable Length: 1.2m. Sensitivity: 600mv +- 100 mv. Frequency Response: 150HZ-20KHZ. Signal to Noise Ratio: >70dB. Driver Size: 2". Impedance: 4 Ohm. Colour: Iron Grey. Dimensions: 81 x 85 x 102 mm. Weight: 358g.