feature: The fairy light string is designed with USB Power and can be connected with your smartphone using Bluetooth technology. It is convenient to control the light from a distance， and you can also change the color of the light according to the music. The controller can easily perform fault control of the light. There are a variety of light colors and a variety of light modes for you to choose from， brightness levels are available， and timer modes can meet your different usage needs. Each LED on the unique Christmas string of lights is a fully programmable smart bulb. You can choose from pre-made lighting designs and animations from the app， or even program your own designs to match your favorite sports team colors， unique animations， and more. Fairy tale string lights are widely used in parties， bedrooms， homes， gardens， patios， balconies， walls， windows， etc. notes: String lights cannot be cut at will. Specification: Type: bluetooth wizard light string Light Color: Dream Color (RGBIC) Length: 5M/10M/15M/20M Number of LEDs: 100 LEDs / 200 LEDs Input voltage: 5V (USB power supply) Bluetooth frequency: 2.4G Waterproof: IP65feature: The fairy light string is designed with USB Power and can be connected with your smartphone using Bluetooth technology. It is convenient to control the light from a distance， and you can also change the color of the light according to the music. The controller can easily perform fault control of the light. There are a variety of light colors and a variety of light modes for you to choose from， brightness levels are available， and timer modes can meet your different usage needs. Each LED on the unique Christmas string of lights is a fully programmable smart bulb. You can choose from pre-made lighting designs and animations from the app， or even program your own designs to match your favorite sports team colors， unique animations， and more. Fairy tale string lights are widely used in parties， bedrooms， homes， gardens， patios， balconies， walls， windows， etc. notes: String lights cannot be cut at will. Specification: Type: bluetooth wizard light string Light Color: Dream Color (RGBIC) Length: 5M/10M/15M/20M Number of LEDs: 100 LEDs / 200 LEDs Input voltage: 5V (USB power supply) Bluetooth frequency: 2.4G Waterproof: IP65