Frisby FS-6100BT Bluetooth Receiver Wireless Stereo 2.1 CH Subwoofer Speaker System with Wireless Remote for Smartphones, Tablets, Laptops, Desktops Bluetooth 2.1 and enhanced bass technology / compatible with all Bluetooth enabled devices 2.1 ch audio / dual satellite speakers with 2.75" drivers and a 4" bass enhanced subwoofer Just plug in your USB/SD/MMC memory cards to play directly on the woofer Wireless range: Approximately 30 ft. Exceptional room filling sound quality