Wireless Connectivity: bicycle alarms feature wireless technology allowing remote arming and disarming via a key . Vibration Detection: Incorporates sensitive vibration detection mechanisms that trigger an alarm upon any attempted movement or lifting of the bicycle. Waterproof Design: Ensures the alarm continues to function even in rainy conditions. Battery Life: replaceable batteries, ensuring a long operational time before needing to be eplaced. Adjustable Sensitivity: Allows customization of the sensitivity level to minimize false alarms due to minor vibrations. Decibel Level: The alarm sound can reach high decibel levels (e.g., ≥110dB), making it highly effective at deterring potential thieves and drawing attention to the situation. Installation: These alarms are often easy to install and may attach to the bike frame using various secure methods without damaging the bicycle's finish. Input Voltage: DC3V AA battery Static Current: 79uA Alarm Current: 120mA Alarm sound:110dB Working