Boytone BT-210FD, Ultra Wireless Bluetooth Main unit, Powerful Sound with Powerful Bass System 30 watt, Excellent Quality Clear Sound & FM radio, with Remote Control Aux Port, SB/SD/ for Smartphone's , Tablets , Desktop Computers , Laptops ,Black Color 30 Watt powerful sound, produces a wide audio spectrum with 6 1/2 sub-woofer, 3" x 2 full range magnetically shielded + 6.5" Speaker Supports wireless music streaming via new Bluetooth technology, USB/SD/AUX support Bluetooth, easy connection & works with all Bluetooth-enabled devices; equipped with a 3.5mm audio jack for non-Bluetooth devices FM tuner, main unit Bluetooth wireless, outstanding connection range of up to 33 feet, 2 stereo speakers with a sub-woofer and built-in amplifier Power source: AC 110V (UL) listed MP3 playback, wireless remote control