The Monster Multi-Colored LED Cup Holder Lights add a new dimension to your how your car’s interior will look. With vibrant colors, you’ll have unique lighting for your cupholders. Our smart sensors activate when an item is placed on top. They also automatically switch on or off depending on the time of day. You’ll be able to charge them with the included Micro-USB Cable. A two-hour charge gives you up to 15 days of light. Add a little color to your car with the Multi-Colored LED Cup Holder Lights.