Smart Combination Lock Mechanical Key Strong And Durable Single Keyhole Built-in Security Alarm Temporary Password Can Be Set Features: Product Name:Smart combination lock Material: Alloy Product color: Black Packing size:19.3*18.3*9cm/7.6*7.2*3.54in Gross weight:917g/2.02lbs Product Description: Use this smart password lock, enter the set password, the door lock will quickly read and unlock. It is easy to install with a screwdriver. This smart combination lock can set up to 100 password combinations. When the smart password lock power is less than 4V, the low power prompt will appear on the lock panel. This smart lock can turn on the silent mode. The sound of opening the door is very small, quietly accompany you to sleep. This smart lock can set a temporary password. This smart passcode lock has a protective function, and if you enter the wrong password, the device will open the limit.The device will automatically shut down for 3 minutes if the input error is 10 times. This smart combination lock is equipped with a mechanical key, which preserves the traditional way of unlocking. Built-in USB charging interface, can be used to open the door in case of emergency. This smart lock is full of texture, made of stainless steel, alloy, using sophisticated manufacturing process, waterproof, durable. Package Included: 1*Smart lock front and rear panels 1*Lock cylinder 2*Mechanical key 1*Fixed panel 1*Guide vane 10*Screw 1*Specification Smart Combination Lock Mechanical Key Strong And Durable Single Keyhole Built-in Security Alarm Temporary Password Can Be Set Professional design, comfortable, durable You can use it longer,High cost performance This is a good gift for your friends, family and classmates.It's a good choice Smart Appliances For Home Smart Appliances Gadgets For Home Smart Appliances Gadgets Smart Appliances Gadgets For Car Smart Appllances Tor Car Smart Appliances For Kitchen Smart Appliances Gadgets For Kitchen Smart Appliances For Bathroom Smart Appliances View