1. Dual Charging Mode: It can be charged by solar energy or USB, and built-in 2000mHA large-capacity battery, which can last up to 6 hours on full charge. USB fast charging, full automatic power off, the connector is equipped with a rubber protective sleeve to prevent dust and rain from entering. 2. Three Lighting Modes: High Beam, Low Beam, and Strobe, with easy switch operation, tap the switch to switch the light mode. 3. Wide Range of Light: Irradiation distance, shooting range of up to 200 meters, night riding is also safe. 4. 5 Horn Modes: Press and hold for 5 seconds to change the ring. 120 decibel loudspeaker, comparable to truck engine, to remind passers-by, safe riding. ABS Waterproof Material + Easy Installation: Can be used in heavy rain and fog environment. Easy to install, rubber binding, 1 second disassembly (specific operation can see the video), suitable for mountain bikes, bicycles, electric vehicles and other models.