Remote Light & Horn Control- The road bike light set contains a remote control that can be tied to the bicycle, you can control the horn and lighting mode by pressing the button. Smart and Easy to Operate. The unique remote design allows you to adjust the bike accessories according to the road conditions without parking, thus ensuring extra safety.Auto Light Sensor & Side Warning Lights- Upgraded Function. With a built-in light sensor, this cycle light can turn on in a dark place automatically and turn off when the light is sufficient, saving power and extending using time. The unique side warning light design ensures that the vehicles on the side can notice you and avoid in time when riding at night.USB Rechargeable & Easy to Install- Use a USB cable for fast charging. This led bicycle light can be connected to various electronic devices for charging, such as computers, power banks, laptops, and USB sockets. It will take 2.5-3h to be fully charged. Easy to install without any tools. Your best choice for daily cycling.IPX4 Waterproof & Versatile Usage- These USB bike headlights are IPX4 water-resistant, which is perfect for small/ heavy rainy or foggy days. Use it when you are riding on the road, mountain, rugged path, countryside, or other outdoor places. The multifunctional led bike front lights are not only fit to all kinds of bicycles but also suitable for scooters, motorbikes, or other vehicles that have a front or back bar.4 Lighting Modes & Super Bright- 300 Lumen Brightness and Adjustable 4 Lighting Modes ( Highlight Mode, Smart Lighting Mode, Low-Light Mode, Flashing Mode) to meet all your riding needs. It can illuminate the road ahead for you in the dark and warn the nearby vehicles to maintain a safe distance. You cant miss this road bike lights if you love cycling