Features: The only lock with built-in alarm, movement and shock sensor! Motion detect, hot processed hardened steel shackle and Aluminum Alloy Body (weather proof). TAMPER PROOF SENSITIVITY ACTIVATES 110 dB LOUD 2 TONE ALARM SIREN! Alarm system : - Alarm under-water (water-proof) - Auto-alarming system & locking system - Can be used with or without alarm. - Dual-shock & Movement Sensor Lock Body: - Corrosion Resistant - Weather resistant - Ice spray-proof and resistant against salt and hard weather - Anti-muffle design - Anti-drill - Anti-bumper prevents scratching - Removable alarm module Lock Shackle: - Shackle diameter 10mm - Hot processed hardened Stainless Steel - Anti-twist shackle - Anti-cut - Double sides removable shackle Lock Battery: - Tamper-proof batteries - 6pcs of Button Batteries free of charge - Life time: 12 months under usual use Lock keys: - Copper material keys - High security - More keys available Advantages of this alarm Lock: - Anti-muffle design, Strong popular lock body. - Chrome finished body, make the lock body strong. - Protects you from un-necessary losses. Descriptions: - Model: 110dba Alarm Clock - Weight: 300g - Color: Black - Material: Hardened Zinc alloy body - Dimensions: 9.6(H)*7.1(W)*3.6(D)CM Package Included : - 1 X SIREN ALARM PADLOCK for DOOR/Motor/Bike/Cabinet LOCK 110db Anti-Theft Security Alarm - 6 X Spare Battery - 3 X Spare Keys