4 SOUND MODE: The volume is up to 120 decibels, During daily commuting, you can switch between 4 different sound effects, and double-click the "speaker" button to quickly switch.
IPX4 WATERPROOF: Rainproof body design, suitable for use in rainy weather.
RECHARGEABLE BATTERY: Built in 200 mah mini battery. Normally, the battery is charged every 40 days.
EASY TO INSTALL: Easy to secure and remove, no tools needed, silicone cover is high-elastic so that to adjust different diameters, fits for most bike handlebars.
SMALL SIZE: Small and portable, weight only 25 gram, suitable for road bikes, mountain bikes, kids bikes, city bikes or other types. It can be stored directly in a pocket or bag when not in use.
