1. Compact design: invisible bell saving handlebar space;
2. Clear sound: effective alerts up to 110 db for enhanced safety;
3. Easy installation: quick and simple to mount;
4. Versatile fit: works with various handlebars; (22.2mm/25.4mm/31.8mm);
5. Size: 62x47x26mm (2.44x1.85x1.02in); Weight: 30g (1.06oz) without the gasket.
Note: Adjust the mounting angle and the tightness of the screw for better operation and clear sound .