... Audio Speaker*Subwoofer includes built-in amplification for all speakers*3D surround sound system, make you enjoy the ultimate feeling ... read MP3, WMA directly*FM radiao*Magnetic shielded satellite speakers do not interfere with monitor display; *Control remote, ... Control, User manual, Audio cableOption2.4G Wireless technology for surround speakersFM radio functionUSB OTG, MP3, WMA playbackSD/MMC Card ...