Loud Sound: Press down to make the bell sound a warning bell when others interact with it. You can hear a crisp ringing tone with just one movement.

High Versatility: Suitable for most bicycles on the market, easy to carry

Waterproof: Daily water resistance. Riding in the rain is also safe (but please avoid prolonged rain)

Small & Lightweight: Small size, light weight, easy to carry, takes up no space. Comes with non-slip seals: Two thicknesses of seals (one thin and one thick) to reduce handlebar wear, and the two thicknesses meet different needs.