SUPER BICYCLE LIGHTS - Bicycle lights have 550 lumens and 3 light modes: High / Low / Strobe, meeting most of cyclists' lighting needs. Current output stabilization function to ensure more stable light while riding, obey the safety of the bicycle is the first. BICYCLE HORN - Equipped 130db bicycle horn, which is loud enough to warn people in front of you, keep you more safe while cycling. Press a button for about 4 seconds to switch to 5 sound, comfortable and safe modes. Horn function to focus more on cycling. PHONE HOLDER - The pad pad of soft foam 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. USB RECHARGEABLE & POWER BANK - 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.