ARCTIC S111 USB-Powered Portable Stereo Speakers for Tablet/eReader/MP3/Computers, Balanced Treble/Superior Bass - Blue USB-Powered Portable Compact Stereo Speakers System Upgraded Drivers Delivering Balanced Treble & Superior Bass Sound Powered by Any USB Connection. Ideal for Tablet/eReader/Smartphones/MP3/Computers Worldwide User-Friendly Integrated Volume Control at Back of Right Speaker. Supports iOS/Android/Windows Available in 6 Vibrant Colors. 2-Year Limited Warranty Turning Tablet/eReader/Smartphones/MP3/Computers into Home Theater Experience 2-Year Limited Warranty