【Unlock mode】: Unlock mode includes remote unlock and key unlock. Our deadlock control system is unlocked by the remote control, then the door is closed and it will lock after 3 seconds. The remote control distance is 0-10 meters. 【Anti-wear】: This smart lock has a long service life, 300,000 locking operations, no wear. Low power, 4* AA battery can provide about 1 year of work. 【Durable】: The remote control door lock has a rust-proof battery case. The spring is made of special materials. The durable lock tongue and main parts are made of stainless steel and will not fade. 【Easy installation】: The remote control with digital session system can be easily and securely installed using an external mounting plate. It is not possible to decode or copy innovative unlocking and locking beepes for easy installation without the need for insertion. 【Excellent after-sales service】: We are committed to providing you with quality after-sales service, quality assurance, and problems in use. Don't hesitate to contact us, we will serve you in time. If you are not satisfied with our products, we will be at 30 Refund within days, feel free to use!, Weight: 2.1825763938 pounds, Manufacturer: Sonew