1、There is no keyhole can be seen outside the door, the upper cover adopts the new CD pattern design, can effectively guard against theft. 2、The smart door lock supports remote unlocking. The system is paired with the remote control. Only the remote control with successful code pairing can be remotely unlocked, encrypted transformed digital signal enhance security(standard configuration is 4 remote controls). 3、Support APP mobile phone Bluetooth unlocking, convenient and fast, avoid the trouble of finding keys. 4、Same as the stability and reliability of car door locks. And improve its rolling code system to improve the safety performance of the anti‑theft lock, which is equivalent to installing a car door opening system on the gate. 5、Support mechanical emergency unlocking. When the remote control is completely lost, can punch a 3‑4mm/0.1‑0.2in hole in the door, and use a screwdriver to unlock the lock. 6、Low‑voltage protection function. When the battery(not included) is too low, the lock will give a low‑voltage alarm ahead of one month(for example, one sound for normal lock and 5 beeps for low voltage). When the battery is too low, it can only use remote control to unlock rather than locking. 7、The dual‑purpose lock catch can be used for both outward opening door and inward opening door. Stickers can be used to stick the keyhole without opening hole. 8、Automatic lock function, supports magnetic control induction lock, automatically locks after magnet induction. 9、Original high‑quality motor, all stainless steel gears, durable, not easy to deform, chip dual‑core dual system, dual power supply control, practical use life up to 300,000 times, and an adjustable base plate is added to facilitate your installation needs. Conditon: 100% Brand New Item Type: Remote Control Door Lock Material: Zinc Alloy Color: As Pictures Shown Lock Body Parameters: Lock Body Size: Approx. 130 x 75 x 33mm/5.1 x 3.0 x 1.3in Remote Control Distance: Approx. 10-30m/32.8-98.4ft Power Supply: 4Pcs AA Batteries(Not Included) Work Temperature: -20℃-80℃ Work Humidity: 5%-60% Battery Life: About 1 Year, 10 Times a Day Unlocking Method: Remote Control Unlocking / Indoor Manual Unlocking / Emergency Unlocking/Spare Key Unlock Remote Control: The System is Paired with the Remote Control, and Only the Remote Control with Successful Code Pairing can Remotely Unlock the Lock Anti-Theft Performance: Anti-Technical Opening, Anti-Master Key Unlocking, Anti-Card Unlocking, Anti-Violent Damage, Anti-Tinfoil Unlocking Password Level: Encrypted Transformed Digital Signal, Unable To Decipher, Mutual Opening Rate is 0 Remote Control Parameters: Size: Approx. 60 x 32mm/2.4 x 1.3in Remote Control Function: Unlock/Lock Standard Configuration: 4Pcs Number of Operations: 300,000 Times Battery Parameters: CR2030 Button Battery, 27A/12V 230mAh (Built-In) Transmission Method: Frequency Conversion Signal Every Time to Prevent Duplication Battery Life: Replace Every Six Months or so Working Humidity: 5%-90% Capacity: The Remote Control Can Register up to 32 1 x Manual 4 x Remote Control(2Pcs 3 Keys, 2Pcs 4 Keys) 4 x Remote Control Lock Circle 11 x Silver Pointed Screw 10 x Golden Pointed Screw 8 x Flat Screw 8 x Screw Washer 1 x Drill Bit 1 x Screwdriver Bit 2 x Black Rubber Pad 3 x White Sticker 1 x Lock Host 1 x Lock Back Panel 1 x Lock Bolt Seat 1 x Antenna