Pump up the volume with this fun Flat Pack Music Speaker Beat Box, a pop-up 3D ghetto blaster that is a stylish card companion for your mobile phone or mp3 player. Simply lock together the side panels and hook it up to anything with a standard 3.5 mm headphone socket to bring your creation to life - no batteries required! Perfect for using at home or on the go. Measures approximately 6.5" x 10.25" x 2.5" when assembled. Comes packaged in a hanging box.