Bullet Points: Dual Function Lock: Combines a sturdy padlock with a high-decibel motion alarm for comprehensive anti-theft protection. Loud Alarm: Built-in siren emits up to 110 dB when the lock is shaken or tampered with, deterring theft immediately. Easy to Use: Insert the key, pull out the lock beam, rotate 180°, reinsert, and the drip alarm activates. Remove the key to lock. Any unauthorized touch triggers the alarm. Rugged & Waterproof: Made of high-quality aluminum alloy and hardened iron shackle, corrosion-resistant and waterproof for long-lasting use. Portable & Versatile: Mini design, easy to carry. Comes with 3 keys. Suitable for motorcycles, bicycles, doors, containers, sliding doors, windows, and more. Description: This motion sensor alarm lock is a versatile anti-theft solution for home, office, and outdoor use. The lock is designed with a thickened shackle made of hardened iron, combined with a durable aluminum alloy body for enhanced security. It is waterproof and corrosion-resistant, ensuring long service life even in harsh conditions. Locking Mechanism: Sturdy brass inner body with a hardened steel shackle to prevent unauthorized access. Alarm System: Triggers on vibrations, movement, or tampering attempts. Emits a 110 dB siren, effectively deterring theft. Power Source: Battery-powered with replaceable batteries. Extra batteries are included in the pack. Package Includes: 1 × Motion Sensor Alarm Lock 3 × Keys 1 × Extra Battery Set