The Dell™ AS501 Sound Bar is a good choice for improving the quality of multimedia presentations, online training / Web casts, music listening, gaming, and DVD playback on your system. Located on the stereo speakers are: a rotary volume with on/off control to adjust the overall system level; a blue LED for power indication; two audio headphone jacks and a Kensington lock tab for security. No need for an AC power cord since the AS501 connects directly to the back of the monitor for powersupply. When the monitor enters a power saving mode, the speakers don’t turn off- enabling continuous audio enjoyment. The AS501 Sound Bar delivers 10 watts of total RMS output for a quality stereo sound experience. This product has been tested and validated on Dell™ systems. It is supported by Dell™ Technical Support when used with a Dell system. This product is only compatible with the UltraSharp brand of Flat Panel Monitors.