Bluetooth wireless technology. Supports Wireless Music Streaming via New Bluetooth Technology, USB/ SD Slot, AUX Support System comes with 2 separate speakers connected with wire to the main unit (sub-woofer) 3”X 2 Satellite plus 5” Subwoofer Bluetooth, Easy connection & works with all Bluetooth-enabled devices; equipped with a 3.5mm audio jack for non-Bluetooth devices. 40 watt (24+8x2) (RMS) FM Tuner, Main Unit Bluetooth Wireless, Outstanding connection range of up to 33 feet, 2 stereo speakers with a subwoofer and built-in amplifier, produces massive sound. Sound of new generation.