The KOOPOOL Electric Bike Bell combines a loud horn, versatile sound modes, and anti-theft alarm function to enhance your cycling experience. With a powerful 125db sound, it grabs attention and ensures your presence is noticed on the road. Choose from four sound modes to suit your preference, including a bell ring, alarm, whistle, or siren. The anti-theft alarm feature provides an extra layer of security, alerting you and others if someone attempts to tamper with your bike. This bike horn is USB rechargeable, eliminating the need for batteries, and its long-lasting performance ensures uninterrupted rides. With its waterproof and durable design, it can withstand various weather conditions, allowing you to cycle with confidence. Upgrade your biking safety and security with the KOOPOOL Electric Bike Bell, and enjoy a worry-free ride.