Features: brand new and high quality RGB music Christmas tree kit is composed of circuit boards, which has a better viewing effect in the night environment. Work voltage: for DC 4.5-5V, power type: DC005 5.5x2.1mm, color:RGB LED. It can be used for Christmas festivals, event celebrations and parties, etc., and can be used to create a festive atmosphere. It can be used to cultivate students' welding skills, student schools, DIY production, e-sports, and can also be used as gifts, handicraft collections, home decorations, souvenir collections and holiday gifts. Comes with USB adapter cable, you can use charger, power bank, computer USB port to supply power. Specifications: Product Name: Flshing Music Xmas Tree Kit Model: CHR-T Product Brand: EQKIT Working Voltage: DC4.5-5V Power Supply: USB Powered or 3x AA Batteries(NOT INCLUDED) Music: Jingle Bells Material: Printed Circuit Board Packing Size: Approx. 180x80x30 mm/7.09x3.15x1.18 inch Package Includes: 1 Piece Christmas Tree Electronic DIY Kit note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!