High-quality stereo speaker with LED RAINBOW lighting for notebooks and desktops. It provide clear and natural sound quality. They work well with all computer units with speaker and USB outputs. It is equipped with built-in volume control. High-quality materials used for their manufacture protect against static electricity and electromagnetic interference. Effective power: 6W (2x3W) Impedance: 3? Frequency range: 300Hz-20kHz Power supply: 5V They require: USB and mini-jack 3.5mm headphone output. Cable length: 1.2m Dimensions: 440 x 83 x 88 [mm] Weight: 780 g