OOPSCOOL Bike Horn,120dB Bicycle Bells IPX4 Waterproof Bike Bell with 300mAh Battery Operated Electric Horn for Mountain/Road Bike/Scooters Adult and Kids

【Clear Bicycle Horn】Electric bicycle horn sound 120dB is loud enough to alert passers-by and improve traffic safety., 【300mAh Button Battery】The bike horn comes with 2 button batteries, the battery voltage is 3V. After experiments, it can be used for 200 days and can ring 5000 times. So you don't need to change the battery frequently., 【IPX4 Waterproof】The bike alarm bell is waterproof, so you can ride your bike in rainy days and it will not affect the life of the product., 【Easy to Install】The bicycle bell fits most bicycle handlebars with a diameter of 0.86- 1.25". We come with two silicone straps of different sizes, and it only takes 3 seconds to install. Also, we provide a 12-month warranty if you Any questions please feel free to contact us., Mini Size, Mighty Sound