High-quality stereo speakers for notebooks and desktop computers with RAINBOW LED backlight. They guarantee clear and natural sound. They work with all computers with a speaker output and USB output. They have a built-in volume control. High-quality materials used in production protect against electrification and generation of electromagnetic interference. Effective power: 6W (2x3W) Impedance: 4 Frequency range: 20Hz-20kHz Power: 5V Requires connectors: USB and Mini-Jack 3.5mm headphone output Cable length: 1.2m