Frisby FS-3500BT Bluetooth Wireless Stereo 2.1 Speaker System Subwoofer for Smartphones, Tablets, Desktops, Laptops (Black) Bluetooth 2.1 & Enhanced Bass Technology / Compatible with all Bluetooth enabled devices 2.1 CH Audio / Dual satellite speakers with 3" drivers and a 5" Bass Enhanced Subwoofer Total 50W RMS Power: Subwoofer 30W + Satellite 10W x 2 Just plug in your USB/SD/MMC Memory Cards to play directly on the woofer Designed for home office, desktop PC, laptop, tablets and smartphones