Campanello elettrico per bicicletta, impermeabile IPX4, campanello elettronico per bicicletta, 22,2 - 31,8 mm, per biciclette, monopattini, MTB, BMX, nero

High-volume electric bicycle horn: The maximum sound of the bicycle speaker reaches 120 decibels. When riding in noisy environments, complex road conditions can lead to collisions. This loud horn is loud enough to effectively warn pedestrians and surrounding drivers to prevent traffic accidents.

Theft warning: Press and hold the left button (lock button) to activate the warning status. If someone touches or presses the bicycle, the bicycle alarm will immediately sound a loud and continuous alarm, deterring thieves from approaching. Press and hold the right button (unlock button) to deactivate the theft protection.

Long standby time: E-bike horn alarm, the capacity of the integrated horn is 250 mAh. It can be fully charged in 0.5 hours, can be reused 1,000-1,500 times, and operate for 20-30 days. A single charge lasts for a long time, so you don't have to worry about running out of power for the next use.

IPX4 waterproof and USB rechargeable: The bicycle bell is waterproof and can be used on rainy days. The electric bicycle horn alarm features a USB charging function and can be charged in various ways, such as via wall outlets, power banks, and laptops.

Easy installation: The doorbell does not require complicated tools for installation. Simply attach the silicone wristband of the bicycle seat to the handlebar, and the strap is elastic and durable. This bell is suitable for bicycle handlebars with a diameter of 22.2 - 31.8 mm, which can be used on mountain bikes, electric scooters/racing bikes, etc.