With this cinema light box, you no longer have to write out words or phrases on a piece of paper with a pen or marker! Purchase the additional 270 Pieces bundle to use this light box to simply and effectively broadcast what you want. It comes with 60 cards that include letters, numbers, and symbols. You can also decorate your light box with erasable markers. (Not included.) Draw or write additional words that you would like to display on your personalized display light box. The setup is simple. Slide the cards into the rails to create the words and phrases you would like to display. Please peel off the protective plastic from the 60 cards. You can hang it on the wall with two provided nail holes in the back for easy wall mount setup. You can also put it on top of your desk, nightstand, table, countertop, etc. Be creative and broadcast what you want! The lights are powered by 10 LED diodes with either Micro USB cable or 3 x AA batteries. (Both are not included.) Stand out in the crowd with a personalized display.