BoomMP3 Box Sound and Music Controllers - Pro Series Our Pro Series includes several combinations of Monster Brain v 1.2 and our MP3 Controller for adding music and sound to your display. There are also options for just purchasing our MP3 Controller and FM transmitters. Start synchronizing lights to music today! This is the MP3 Controller packaged in a plastic enclosure. EMP3$399.95 This is a Monster Brain v2.0 and MP3 Controller in a plastic non-weather resistant enclosure. EMBMP3$499.95 This is the MP3 Controller packaged in a plastic enclosure with an external FM transmitter. EMP3FM$599.95 This is the Monster Brain v2.0 and MP3 Controller in a plastic non-weather resistant enclosure with an external FM transmitter. EMBMP3FM$699.95