This spectrum Christmas tree has an innovative design and combination of fun, learning, and art, which is suitable for both electronic enthusiasts and school students. This soldering kit requires basic electronic knowledge.

Music Dances on the Tree - Red, yellow, blue 3-color LEDs beats with the rhythm of the music, makes a great visual effect. It is also a delightful and beautiful art decoration, especially at night.

The Christmas tree will sensitively collect ambient sound through the MIC/music through the audio cable, and accurately reflect the rhythm on the 10-level colorful LEDs on the tree. The sensitivity is adjustable.

Support 3 AA battery powered and DC 5V cable powered, this makes it portable and able to be placed everywhere at your home. 5.3*2.4*2.4 inches.

If some LED doesn't light, please check whether all components are in the right direction and the correct place. Please check if there are some solder points are in poor connection, which is a common cause of this problem.