1. The product is made of high quality PCB and electronic components materials, stable performance, quality assurance. 4. This item looks like a small Christmas tree. The powered by a 3xAAA battery.(battery not included).Power supply voltage: DC 4.5-5.5V. 3. This circuit is simple and practical, low power consumption.It uses integrated circuits for driving: fewer parts,and is simple and easy to understand. 2. Green printed circuit boards combined into the shape of a Christmas tree, easy to make, perfect for DIY enthusiasts, can improve their hands-on ability, can also be used as a decorative gift. 5. The product is shipped in bulk, you need to weld it yourself, the effect is cool after welding, whether it is a gift or ornamental, it is a very good choice!