USB Stereo Speaker with Magnetic Design, Black Color, RoHS. USB powered computer speakers are just right for getting more sound from your desktop or laptop. These stereo 2.5W magnetically shielded speakers put out the sound and you'll enjoy your multi-media experience even more. On/Off switch, volume control and power LED combined with the ability to merge them into one sound bar make them versatile. Lightweight and relatively small, they will complement your computer system. Connectland CL-SPK20037 USB Powered Stereo Speakers. SYBA CL-SPK20037 2.0 USB Powered Stereo Speakers.