Make your ride louder and safer with the ROCKBROS Electric Bicycle Bell! This mini e-horn packs a powerful sound to grab attention instantly. Lightweight and waterproof with an IPX4 rating, it’s perfect for all weather adventures. Easy to mount on your MTB handlebar, it’s the fun and reliable way to announce your presence on the road!

Features

Loud & Clear Warning Sound

Despite its compact size. The crisp and penetrating tone effectively alerts nearby pedestrians and vehicles, improving safety during commuting and sports cycling0

Quick Response Operation

Mounted near the edge of the handlebar, the horn can be activated with a single finger for immediate sound output. Highly responsive and easy to operate—ideal for commuters and children's bikes alike

Secure Installation

Uses flexible elastic straps to mount securely on handlebars with a diameter of 27–35mm. Compatible with road bikes, mountain bikes, e-bikes, and children's bikes. Stays firmly in place without slipping

IPX4 Splash-Proof Design

The sealed battery compartment and durable ABS+PC shell provide reliable splash resistance for everyday rides. Safe to use in light rain, though not recommended for heavy rain or full submersion

Battery Powered

Equipped with two CR2032 button cell batteries (3V*2) for stable, long-lasting performance. The battery compartment is tightly sealed for enhanced water resistance—use a tool to assist when replacing batteries

Product Details

Brand	ROCKBROS
Material	ABS + PC
Water Resistance	IPX4
Battery Type	Lithium coin cell, 3V
Weight	Approximately 34g
Installation Method	Rubber band securing system