DescriptionThe HP  High-quality Stereo Speaker deliver a clean and accurate sound. They are  USB powered and does not require an external power supply. With RGB  backlighting.Features High-quality speakers deliver a clean and accurate soundUSB powered, does not require an external power supplyActive electronic equalization balances low, mid and hlgh frequencies for more natural tone and clarity.These  USB speakers make for an easy setup. Connect the USB plug to to the  port on your computer and the 3.5rrm to the headphone jack  Specifications                     BacklightRGBRated power2 x 3WFrequency response300 Hz - 20 KHzDrive unit2" x 2Connectors3.5 mm jack (audio), USB (power)Power supplyUSBSize440x83x88 mm