USB Playback - The USB 2.0 port plays MP3 or WMA music files from your USB memory devices up to 64 GB (FAT/FAT32 format only, NTFS not supported).The built-in Bluetooth streams music wirelessly from your Phone/Pad or other Bluetooth devices, such as smartphones, tablets or even loptops, so you can enjoy your favorite music, sound from video or game wireless on this speaker easily. FM Radio & Bluetooth Connection - A built-in digital FM Stereo Tuner with auto-search and 20 station preset memory lets you choose from a wide variety of radio, talk and music programming.The Repeat function helps you to play one track, all tracks, or random/shuffle mode.