Bicycle lights have 550 lumens and 3 light modes: High / Low / Strobe, meeting most of the lighting needs of cyclists. Current output stabilization function to ensure more stable light while riding, obey the safety of the bicycle is the first. Bicycle horn equipped with 130db, which is strong enough to warn people in front of you, keep you more safe during cycling. Press a button for about 4 seconds to switch to 5 sound, comfortable and safe modes. Horn function to focus more on cycling. The pad of soft foam pad to better absorb the impact during cycling and the rubber pads provide a secure grip for your cellphone, ensure safety during cycling. Built-in car light and cell phone holder are designed to keep your handlebar holder more clean and organized. This rechargeable led light integrates a powerful 4000mAh rechargeable lithium battery, 4-12 hours of operation. It is also 4000mAh power bank, you can use it to charge your cellphones.