Specification: Model : X17 Speaker System : 2.0 Speaker Rated Power : 3Wx2 Maximum Power : 3.5W Impedance : 4 S/N Ratio : 58dB Frequency Response : 20Hz-20kHz Power Input : USB 5V Distortion : 80Hz-20kHz<1% Connection : USB Connection Product Advantages: 2.0 Sound Channel Desktop Speaker DC 5V USB Powered Dengan Switch Volume Control Very easy to adjust the volume Supports 3.5mm AUX jack output device type Can be used for cellphones and computers or laptops (on cellphones, the USB power must be plugged into electricity with a cellphone charger adapter, for computers, just plug it into the USB port)