Wireless Monster Amp (Assorted Colors) Choose your favorite color: Black, Blue, or Pink. Packaged in color box. Materials: Rubberized coated ABS. Includes MIA - Magnetic Induction Amplifier. Wireless touch, high quality amplifying stereo speaker. No Bluetooth, No Wifi, No Synching required. Takes 3AAA (Not included). Size: 3H x 6.25L x 2.25W