- Powerful Sound: This electric bike horn features a built-in voltage boosting circuit, producing an impressive 130dB sound that effectively alerts pedestrians and other cyclists of your presence. - Convenient USB Rechargeable: Equipped with a 280mAh battery and a USB charging port, this bicycle bell offers easy recharging and can last up to a remarkable 365 days on standby. - Versatile Sound Options: Tailor your alerts with three distinct sound modes: whistle, horn, and alarm, providing you with the right tone for various riding situations. - Universal Compatibility: Designed to fit a wide range of bikes including mountain bikes, road bikes, BMX, and scooters, this rechargeable horn easily attaches to handlebars with a diameter of 22.2mm to 32mm. - Added Security Feature: The anti-theft alarm function provides an additional layer of security, helping to protect your bike in busy areas. Use Scenarios: 1. Urban Commuting: Enhance your safety while navigating busy city streets with loud alerts that make you heard amid traffic. 2. Trail Riding: Warn fellow hikers and cyclists of your approach on rugged trails using the adjustable sound modes. 3. Parking Protection: Activate the anti-theft alarm when locking up your bike in public places, deterring potential theft. With its powerful sound, long-lasting rechargeable battery, and practical features, this electric bike horn is a smart investment for any cyclist looking to enhance safety and convenience on the road.