Bicycle bell 120 dB: one sound, normal horn tone. The sound is very loud and clear. The horn of the bike is loud enough when you ride outdoors. Bicycle bells are suitable for road bikes, mountain bikes, city bikes, sports bikes, cruisers, MTB, BMX, e-bikes, etc. Both adults and children can use them.IPX4 waterproof and shockproof: the bicycle bell is waterproof and can also be used in the rain. Warning: do not immerse the horn in water.Premium material: the mini bicycle bell is made of high-quality ABS and rubber pads, which make the bicycle horn more stable and durable and can be used for a long time.Battery compartment: battery voltage: 3 V 2, two batteries can be approx. 1 year. The battery is Cr2032 (there are already 2 batteries in the bicycle horn).Packing list: you will receive 1 x black bicycle horn, 2 x strap, 1 x non-slip pad with a secure fit. The bicycle bell is installed by the hook on the back, the strap is elastic and delicate, with 2 different sizes of rubber straps, you can easily adjust to different sizes, suitable for most bicycle handlebars with a diameter of 15-30 mm, easy to assemble and assemble.