Get a fuller multimedia entertainment experience for your desktop with the Logitech Z213 Multimedia Speaker in Black. Compatible with any electronic device that has a 3.5mm jack, this multimedia speaker system produces enhanced and customizable audio for. Down-facing subwoofer with 4" driver for rich bass. Inclined design directs sound right to your ears.Control pod features adjustable volume knob, power switch, and headphone jack. Separate control knob at the back of the subwoofer for bass control. 4 watts subwoofer with integrated bass control and 4" down-firing dome driver. Capable of Bluetooth compatibility with Logitech Bluetooth Audio Adapter (not included). The Logitech Z213 Multimedia Speaker delivers rich stereo sound in a compact desktop design. Full sound without sacrificing space. The three compact and powerful speakers that make up the Logitech Z213 Multimedia Speaker are designed to give you rich sound without taking up much desk space.