The newly - upgraded Hornit DB140 Cycle Horn is the loudest one on the market. It's a must - have safety tool for cyclists. With it, you can easily alert pedestrians, other riders, and motorists to your presence. The internal components have been improved, and it comes with a brand - new Garmin - style mount. This makes the dB140 more reliable on the handlebars, easy to remove, and interchangeable with other Garmin - compatible devices.
Specifications:
- Sound: Piercing mode outputs 140db, and Horn mode is 121 db.
- Battery type: 2x AAA batteries.
- Total Weight: 102g.
- Water resistance: IP44.
- Dimensions: Horn - 98 x 48 x 42mm, Trigger 355 x 20 x 9mm.
- Mounts: 31.8mm Garmin mount for drop bars and 22 - 26mm Garmin mount for other bars.

Using the Hornit DB140 Cycle Horn is super easy. First, install the 2x AAA batteries into the battery compartment. Then, choose the right mount according to your handlebar type and attach the horn firmly. To use it, simply press the trigger. There are two sound modes: the piercing mode with 140db output and the horn mode with 121db output. You can switch between them based on your needs.
When using the horn, make sure not to point it directly at people's ears for a long time, as the high - volume sound can be harmful. Also, keep it away from extreme heat or cold.
For maintenance, since it has an IP44 water - resistance rating, it can withstand some splashes, but don't submerge it in water. If it gets dirty, you can use a dry or slightly damp cloth to clean it. Periodically check the mount to ensure it's still secure, and replace the batteries when the sound becomes weak.