beFree Sound 5.1 Channel Bluetooth Surround Sound Speaker System- Yellow Model: BFS-610 beFree Sound Bluetooth Speaker System provides clear sound from all satellite speakers and amplifier from up to 30 feet away. You can sync any Bluetooth enabled device; your phone, tablet, media player or even your computer. For other non-Bluetooth devices, there is a USB and SD input ports. 1 6.5" Amplifier + 5 3" Speakers * 1 SDMMC Card Slot 1 HDMI port * Output Power: 80W+18W*5 * Unit Option: 8"+3"*5 * Output Power:100W+18W*5 * Frequency response: 40Hz-20KHz * Separation: 50dB * S/N Ratio:75dB * USB,SD Compatible * FM Radio * Bluetooth * Remote Control Included For other non-Bluetooth devices, there is a USB and SD input ports. Additional conveniences include a remote control. You've got full power to fill your room with big, balanced sound. All the speakers and the amplifier are magnetically shielded to provide protection against image distortion from external electronic sources. Compatible with all smartphones and all mp3 players. The system comes complete, with all necessary cables THE SPEAKERS IN THIS SYSTEM ARE WIRED THE BLUETOOTH IS TO ALLOW THE SYSTEM TO WIRELESS CONNECT WITH ANY OTHER BLUETOOTH ENABLED DEVICE.