【Sensitive Detection】When triggered, the super loud sound up to 110dB will be a huge deterrent, effectively scare away thieves and also help you drive away strangers sitting on your bike without permission, the volume/sensitivity can be adjusted as your needed. 【USB Charging】Say goodbye to the hassle of changing batteries, the bike alarm is recharged with a USB-C cable (included), it can be used up to 1-3 months after fully charged. 【Bike Finder Function】Can't find a bike in the parking lot? Don't worry. Just press the remote control, the bell will ring and easily find bikes within 229 feet. 3 types of car search ringtones are available to meet various needs. 【Easy to install】 3 ways to install: bracket, zipper, double-sided tape. The bracket is stable and easy to adjust the installation position. Cable ties and double-sided tape installation are suitable for irregular installation objects. 【Multifunctional alarm】 This high-sensitivity vibration-triggered alarm is suitable for