The Mini Cinema Lightbox features three LED power modes: classic white, colour-changing, and hold on any solid colour to set your room vibes. This Mini has a black shell. Simply slide in letters to make your own sign. Fits eight tiles across each row. Includes a letter storage compartment on the back, and an easy access battery compartment. Dimensions are 20cm x 15cm. Powered by Micro USB cable (included) or 6xAA batteries (not included). Table top or wall mountable. For indoor use only. 100 letters, numbers, characters, and symbols + blank tiles are included in package. Additional letters, numbers and symbols can be purchased separately.