Features: Experience enhances safety with our electric bicycles bells, designs to emitting a clear and loud 120dB sound, ensuring you're hearing even in noisier environment. Features a light weight ABS construction and water proof designs, this electric bells is easy to install on handlebars, making it suitable for various bike types. With long timing use USB rechargeable battery, this electric bells combines practicality with friendly benefits, reducing the need for constant replacements. Great for cycling enthusiasts, city commuters, mountain bikers, and road cyclists who prioritize safety and convenience in their biking ride. Perfect for daily city commuting, casual ride, outdoor biking, and campus cycling, or any environment where alerting others is important. Specifications: Materials: Plastic Color: As The Picture Shows Type: with Wire Control/without Wire Control (Optional) Size: approx.85mm/3.34in (More Size Detail, Please See Picture.) Package Includes: 1Pc Electric Bicycles Bells note: Please allow 1-2cm error due to manual measurement. Please make surer you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual color to the item. Thanks!