Boytone BT-210FD comes with New Bluetooth technology which supports wireless music streaming. The Main unit connects with wire or you can also wirelessly connect a smartphone/tablet/pc via Bluetooth. System comes with 2 separate speakers connected with wire to the main unit. FM Radio, powered by AC wall outlet (UL) listed, AUX cable included. Frequency range: 40Hz-20kHz - Satellite rated power: 4"8 ohm Wired/Wireless Bluetooth connection to stream wireless music from the tablets, smart phones, laptops, iPad, iPhone and more. Volume controls on the sub-woofer, output total power is 30 watt with 6 1/2 inch sub-woofer speaker. Pairs quickly and easily with your unit. USB/SD/wireless remote control with FM radio and digital display. Listen to your music LOUD and CLEAR. Built in Mp3 player included, it could automatically play the music with a standalone Micro SD card. Custom Designed and Engineered by Boytone - An industry trusted brand for over 33 years. Part number: BT-210F - Black color with soft white checker design on the body of unit. 1 year warranty provided by Boytone. For more information please check manufacturer website.