Thank you very much for checking the product! (*- -)(*_ _)Pecko Installation is very easy! Just plug in the USB and attach the pre-applied double-sided tape to the footwells of the seats. The LED lights will flash and glow in sync with the music! If you'd like, please purchase it now! Car LED Illumination Light ―――――――――――― Power: 5V USB Type A LED strip light 1 unit (9 LED lights) x 4 units Cable length Front row: 100cm x 2 Rear: 150cm x 2 Remote control x 1 (coin battery type) 8 colors of lights will brighten up the interior of your car with the music during night drives! If you use it for family trips, dates, or trips back from outings, your children will be happy, and it can create a good atmosphere with your partner, making night drives more enjoyable! Since it's USB powered, it can be used outside of the car as well. You can light up a Christmas tree from below, or use it for birthday celebrations. If you have a USB battery, you can install it anywhere, so you don't need to be near an outlet. The remote control settings include single-color lighting, random lighting, fade-in, fade-out lighting, and various patterns such as lighting in sync with music. 【Installation Instructions】 Please attach it to the footwells of the front and rear seats. Before attaching, please clean off any dirt or dust. Please note that the wiring lengths for the rear seats and front seats are different. Then, just plug in the power to the USB. ※Caution※ Be sure to install it in the footwells. If you install it in a higher position, the LED light may leak outside the car, which could be a violation of the "Road Traffic Law." When the red light is on while driving, it may be mistaken for brake lights, and when the white light is on, it may be mistaken as tailgating by oncoming or preceding vehicles. This could lead to "traffic accidents" or be "mistaken for aggressive driving." Please install it in a position where the light does not leak outside the car as much as possible. Thank you for checking the product description. If you'd like, please purchase it now!