With a sleek design, this speaker boasts features galore in a petite package. Play music over Bluetooth, access Mpeg audio layer 3 (MP3) files with a universal serial bus (Usb) flash drive, or simply listen to frequency modulation (Fm) radio. Pair this speaker with your phone and take your calls hands free with the system microphone. You can also choose light emitting diode (Led) light effects for a fun design element.