This acrylic Christmas tree is a cool DIY project for the holiday decoration. The Christmas tree is made of 3 pieces of PCB shape, and in order to conform the Christmas holiday theme, the PCB add some different & funny Christmas patterns to increase the festival spirit. A total of 37pcs colorful LED are distributed evenly across the Christmas tree, and by a MCU to control the LED display .There is a small switch on the base that opens the switch to work, and closes to turn off the light . Features: 8 kinds of colorful LED display effect. A great DIY Christmas gift for electronic enthusiast and DIY enthusiast. With some funny Christmas patterns on the PCB. All using DIP components to solder, easy to make and suitable for beginners. Installation Method:You will get a bulk DIY kit, all components need to be soldered by yourself. fixed with screws. Provide with installation instructions. Tips: Acrylic shell is not included and no music. Specifications: Color: Green Material: Acrylic Board + PCB Board + Electronic Components LED Quantity: 37pcs LED Light Color: 7 Color Power Supply: 2 * 1.5V AA Battery (NOT Included) Package Size: 16 * 11 * 3.5cm / 6.30 * 4.33 * 1.38in Package Weight: 100g / 3.5oz Package List: 1 * DIY Christmas Tree Making Kit (Acrylic shell is not included)