Burglarproof Alarm Heavy Duty Waterproof Bike Motorcycle Chain Lock 110dB Security Smart Bike Alarm Lock for Outdoor Cycling

Anti-Theft Alarm: 110dB alarm on the spot scares off the potential loss while at home or parking outside, handy for bikers when parking outdoors or at home.

Convenience: Keyless, Programmable 4 digital passwords to unlock

Batteries: 3 "AAA" batteries required (not included) which lasts for 5 months use (Opened twice, daily). Low battery indicator

Waterproof: IP44 IP44 (splash resistant) and Operates in temperatures between -14 to 140 Fahrenheit