Security Alarm Metallic Lock System | Waterproof Black Anti-Theft Siren 110DBA Alarm Aluminum Alloy Anti Theft Security Padlock for Universal Use | Thickened Shackle Lock with 3 Keys (1 Set) Description :- PADLOCK THAT WILL ALARM: Combines locking function with alarming function. Alarm mode: Rotate the lock beam to 180°and press it, you will hear the di sound prompt, the alarm mode is on. In this mode, if an external force touches the lock body, the lock will emit a harsh alarm sound. QUALITY ALUMINUM ALLOY: This door padlock is made of quality aluminum alloy material, corrosion resistance, waterproof and durable to use. Normal mode: Reverse the lock beam at 180° and press it again, there is no di sound prompt, normal mode is on. No alarm sound in this mode. 110DB ALARM VOLUME: Built-in siren device with loud alarming sound up to 110db, perfect for avoiding theft, the security alarm lock will protect your wealth from loss The lock core adopts atomic idling lock cylinder, the lock body is precise, rustproof and waterproof, and fragile. WIDE APPLICATION: Comes with 3 keys. One is for use and the rest is kept ready. Our anti theft padlock is suitable for most motorcycles, bicycles, doors, window and so on. EASY TO CARRY: Mini appearance, it's convenient to carry anywhere you are heading to. Portable anti-theft padlock can be set to two states: alarm mode and normal mode. Dimension :- Volu. Weight (Gm) :- 187 Product Weight (Gm) :- 296 Ship Weight (Gm) :- 296 Length (Cm) :- 17 Breadth (Cm) :- 13 Height (Cm) :- 4 Read Less