beFree Sound BFS-900 5.1 Channel Surround Sound Bluetooth Speaker System Accessories and features included: Remote control, Bluetooth technology, FM radio, USB and SD inputs This speaker system with Bluetooth wireless technology features 5 built-in high-powered speakers Easily connects to your smartphone or other Bluetooth enabled audio devices 1 5.25" amplifier + 5 3" speakers Remote control included (remote requires 2 AAA batteries, not included)