Feature: 1. There is no leaking keyhole, no lock can be seen outside the door, invisible anti theft, and high security performance. It is more convenient to unlock the door by remote control. There is a mechanical emergency unlocking hole. If the remote control is completely lost, punch a 3‑4mm hole in the door and use a screwdriver to unscrew the emergency unlock. 2. Remote unlocking, the system is paired with the remote control. Only the remote control with successful code pairing can remotely unlock the lock. It can also encrypt and transform the digital signal. Each lock can be equipped with a remote control (additional purchase requires an additional purchase of 4 standard equipment). 3. Made of zinc alloy stainless steel, and the upper cover adopts a new CD pattern design, which is sturdy, wear resistant, corrosion resistant, and not easily deformed. The rolling code system is used to source the stability and reliability of the car door lock. The safety performance of the invisible anti theft lock is equivalent to installing a car door opening system on the gate. 4. There is a low voltage protection function. When 4 batteries are commonly used and the power is too low, the remote lock will give a low voltage alarm one month in advance (for example, a normal lock will beep once, and a low voltage will beep 5). When it is very low, it can only be unlocked by remote control. Lock. The four batteries are completely dead. When the spare battery is dead, the remote control lock will automatically open and will not lock itself out. 5. There are dual purpose latches, both inside and outside doors can be opened. Useful stickers can be used to stick to the keyhole, and there is no need to open the door. It supports magnetron induction locking, and it will automatically be 3 seconds after induction by magnetic stickers. After the lock. 6. Original high quality motor, all stainless steel gears, chip dual core dual system, dual power control, safe, reliable, economical and practical, practical life up to 300,000 times, and an adjustable base plate is added to facilitate your installation needs. Specification: Condition: 100% Brand New Item Type: Door Lock Material: Stainless Steel Color: As Pictures Shown Unlocking Method: Remote Control Unlocking and Spare Button Unlocking Remote Control Features: Paired with the remote control, only the remote control with successful code pairing can remotely unlock the lock. Anti-theft Performance: Anti Technical Unlocking, Anti Master Key Unlocking, Anti Card Unlocking, Anti Violent Damage Password Level: Encrypted transformed digital signal, unable to decipher, mutual opening rate is zero. Remote Control Distance: Approx. 0-10m / 0-33ft Number of Operations: 300,000 Times Power Supply Mode: 4pcs AA Dry Batteries, Emergency Power Supply Mode for Remote Control (shipped Without AA Battery) Battery Life: About 1 Year of Normal Use Lock Body Weight: Approx. 660g / 23.3oz(without Battery) Lock Body Specification: Lock Body Size: Approx. 130mm x 75mm x 33mm / 5.1 x 3 x 1.3in Remote Control Distance: Approx. 10-30m / 33-98ft Anti-theft Performance: Anti-Tinfoil Unlocking, Master Key Battery: 5pcs A Batteries (shipped Without Batteries)Use Temperature: -20℃-80℃ Use Humidity: 5%-60% Lock Body Weight: Approx. 660g / 23.3oz Battery Life: 10 Times a Day, About 1 Year Unlocking Method: Remote Control Unlocking / Indoor Manual Unlocking / Emergency Unlocking Remote Control Specification: Product Size: Approx. 60mm x 32mm / 2.4 x 1.3in Remote Control Function: Unlock and Lock Standard Configuration: 4pcs Battery: 27A/12V Battery (built in Battery Shipped) Transmission Method: Frequency Conversion Signal Every Time to Prevent Duplication Battery Life: It is Recommended to Replace It Every Six Months or So Working Humidity: Temperature 5%-90% The Remote Control Can Register Up to 32pcs Package List: 1 x Invisible Lock Host1 x Invisible Bolt Seat1 x Manual1 x Signal Antenna2 x White Sticker1 x Metal Silver Sticker4 x Remote Control Host4 x Remote Control Ring11 x Pointed Screw1 x Screwdriver Head1 x Electric Drill