Louder than a standard bicycle bell, this electronic bell is also cooler because it’s more discrete—only the button needs to be mounted on the handlebar (the speaker can be mounted in the stem). It produces 4 different tones—one horn and three different bell sounds. The sound volume is adjustable at the loudest setting registers 120db. Recharges in just over an hour via USB (mini USB-B cable included), and provides up to 2,500 rings (realistically it’s about 6 months of normal use at a decent volume). Both the speaker and control buttons mount easily without tools (silicone o-rings). IP65 rated.