Audio at Your Convenience Designed to be practical and simple to use, the A50 is powered by USB and delivers quality sounding audio for your notebook or desktop PC via its 3.5mm stereo jack that ensures audio connectivity across a wide range of devices. Powered by USB A USB port is all it takes to power up the A50. Simply plug it to your computer – no power adapter needed! Built-in bass port Designed with a built-in bass port, the A50 gives you extended bass for your music while taking up minimal space on your desk. Easy connectivity The 3.5mm stereo jack gives you audio connectivity to a wide array of audio devices. Convenient controls The ON/OFF button and volume control are conveniently located on the right satellite for easy access. Magnetically shielded satellites A50 is perfect for any notebook or PC setup and you can also place the speakers near your CRT display without any worries! The speakers magnetic shields ensure that magnetic interference does not affect your display equipment.