This 13.5-inch battery-operated LED Christmas Tree Advent Calendar from Kurt Adler is a fun and festive way to count down the days until Christmas during the Advent season! Its unique design includes a large Christmas tree framing a scene in which Santa Claus and his helpers are decorating the tree. The tree is pre-lit with 8 warm white LED lights. The base for this tranquil scene contains 24 tiny doors, each with an ornament with which you can place on the tree each day. This item requires 2 AA batteries (not included).