Photron 2.0 Multimedia PC Speakers uses a professional audio amplifier chip and a two-channel stereo sound output for a powerful perfect sound. Get your very own Top Quality Simple and Classically Designed Dual Computer Speakers now! If you're looking for a pair of speakers with acoustic quality stereo sound but easy to carry and not taking too much space on your desk. Features: -Perfect sound with 3D Stereo Effect -With volume control switch -3.5mm stereo signal cable -Power supplied by Mini USB, no adapter or amplifier required. -Hot plug, no software driver needed -Full Frequency speaker unit with RMS 3W*2 (6W) Specification: Type: Multimedia Speakers Channel Configuration: 2.0 Dual Speakers Output Power: 3W*2 Total 6W RMS with power supplied by desktop/laptop Input Sensitivity: 600+/-100mV R. Frequency: 90Hz-20000 Hz Distortion: 0.3% 1W 1KHz. S/N Ration: ≥60dB Separation: ≥45dB Connectivity: 3.5 mm Audio Jack, USB jack Additional Features: 2-inch satellite driver unit, 65 dB separation How it Works? These Photron mini speakers have a 3.5mm jack which are widely use in computer, mobile phone and other music devices and USB plug. Just Plug it in and take your mobile gaming and music experience to next level. Note: USB and 3.5mm cables both need to be plugged. You can plug usb cable to power and plug 3.5mm to any player.