1. The USB Christmas tree uses a 1.2-meter-long cable, which is directly plugged into an interface of about 3.7V or a computer interface, and it emits colorful light from three different color combinations of red, green and blue.2. The product is composed of a single fiber with a diameter of 0.25MM in a uniform spiral shape, and the fiber is an environmentally friendly material.3. A variety of colors flash alternately, beautiful and dynamic in the dark, creating a warm atmosphere at home.4. Directly plug into the USB dedicated socket to enjoy the Christmas atmosphere It is simple to use, safe and energy-saving, and does not contain harmful substances and light pollution.5. Suitable for Christmas gifts, toys, promotional items, souvenirs, premiums, New Year, romantic couples, bedroom, office decoration gifts.6. Avoid high temperature exposure. Because the optical fiber wire is a plastic product, high temperature will easily deform the optical fiber wire and affect the appearance of the product. The suitable temperature is between -10 degrees and 30 degrees.7. This product contains electronic components. The shell and the tree body are fragile. Avoid knocking and throwing the ground, and try to handle it gently.Specifications:Type: Christmas Tree LightsMaterial: PlasticSize: 6.5 x 6.5 x 12.5 cmPackage Included: 1 x LED Christmas Tree LightsNote:1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.2. Please allow 1-3cm measuring deviation due to manual measurement.( 1 inch = 2.54 cm )