Features: Mini Soundbar Computer Speaker:  Best choice for your computer & TV or other 3.5mm devices to enjoy a clear and excellent sound quality.Make a private theater for yourself.    Operation manual:  Connect the USB cable to the power supply and insert the 3.5mm audio cable into the audio output of your device (such as TV / PC / Smartphone). Then turn the switch to turn on the soundbar. Turn the rotating button to adjust the volume.    Most concerned Q&A:  Q: Can it work with Tv ?  A: Yes,but we don't recommend to do it with TV.Of course you can use it for tv cause it has all the components in the back expect an hdmi port.But we don't suggest you to use in on TV,for its sound maybe is not enough to some people.  Q: Can it be used with any smart phone also?  A: Yes As long as you plug the 3.5mmcables correctly.  Q: What are the three cables for?  A: The usb cable for power, the pink cable for mic and the green cable for headphone.  Q: What are the dimensions of this product?  A: Roughly 46*6*6cm. Height of the legs is about 1/4 inch. Cables are 3 or 4 feet.    Specifications:  Rated power / RMS: 3W * 2;  Peak power / PMPO: 200W;  Speaker impedance: 4Ω * 2;  Input impedance / input impedance: 10K Ω;  Frequency Response / Frequency: 90Hz - 18KHz;  Resolution / separation: ≥ 45db;  Input sensitivity / input sensitivity: 750mV ± 50;  Signal-to-noise ratio / ≥30db;  Input voltage / power consumption: 5V