Review on 🔒 Motorcycle Bike Scooter Waterproof Brake Disc Lock with Alarm | Antitheft Zinc Alloy Lock | Mechanical & Alarm Mode 110db | Bag Reminder Band Included by Eric Longoria

very good disc brake lock for my e-bike. The motion sensor is very sensitive and can detect movement as soon as it occurs and immediately turn on the initial warning siren. If motion continues to be detected, the alarm will go off until motion is no longer detected within a few seconds. However, the siren is a little quiet, not as loud as I think, and I don't like that it uses button cells instead of built-in lithium batteries, or at least some of the more popular batteries like AAA or CR123A.