App Control & 16 Million Colors: Our car atmosphere light uses wireless APP for control suitable for IOS or Andriod. Choose any color you like from 16 million colors. Built-in 29 preset modes, APP control to turn lights on or off, dim or brighten and even adjust the speed of mode. | Sound Active Effects: The LED car interior lights system is equipped with sound sensors that lets the LED lights synchronized with music beat. The LED music light strip follow the beat and adjusts flashing to fit the strength of the sound. | Safe and tidy: The working voltage is 12v, car charger Included, it's safe and no need to worry about children. The product is installed in the gap, which can provide your car with a good atmosphere effect and make your car tidy. | The length of the installed Optical fiber exceeds 100inch. If the brightness of the Optical fiber end is dark, it is recommended to add 1Pc RGB LED light at the end to make the Optical fiber cable meet the brightness requirements. | (Patent Design) Universal for all cars and trucks. Plug and Play. You can cut it according to the length of each strip you need. DIY whatever you like.