3 Yr Mfg Warranty: 3 year manufacturer warranty. Instruction manual included. VOLUME CONTROL: Front-panel rotary knob conveniently lets you raise or lower the speaker volume without having to change the volume on your device. USB POWERED: Both computer speakers draw all their power through the USB connection - can receive power from a USB computer port or charger; works right away - no charging necessary. The USB-A cable & 3.5mm audio cord length is 6 ft long. The 3.5mm audio plug quickly connects to most PCs and mobile devices. Need to connect audio plug to any source with an aux-out. RGB LEDs: Color-changing light circles give you an immersive atmosphere with games, music and movies. Great for gamers. Please Note: color led lights can't be adjusted or turned off. GOOD QUALITY SOUND: Two-speaker system to output full, rich sound from your laptop, notebook or even tablet or smartphone - any audio output device with a 3.5 mm aux port - while you work, relax or play your favorite games on xbox, ps4, ps5, or PC; dual external speakers improve stereo separation and sound field. The cable length connecting the speakers are 3.3 ft.