Frisby FS-5000BT 5.1 Surround Sound Home Theater Speakers System with Bluetooth USB/SD/AUX and Remote Bluetooth 5.1 & enhanced bass high technology/compatible with all Bluetooth enabled devices USB/SD/MMC memory cards audio inputs Bluetooth wireless range: Approximately 30 ft LCD display (track you're playing or adjust equal level or volume) Digital HQ bass surround sound technology