1:Voice Control: Add a Wi-Fi Bridge(sold separetely) to remotely locl/unloclk and monitor, your door as well to integrate with Alexa to enable Voice Control.
2:Longer Lifespan & More Reliable: Both the front and back panel  of this Smait Digital Door Lock are made of Zinc Alloy,Anti-impact & suitable for harsh environments.(Waterproof Level :Operating Temp Range:-20ºC~50ºC)
3:Keyless  Entry Door Lock: Lock and unlock with Samrtphone, Keypad and Mechanical Key.Control keyless access and keep track of who comes and goes.all from your phone, You well have comfort in knowing your door's status.Control Access for Anyone, Grant access for a few weeks, a few hours, a few minutes, and revoke them again whenever you need to.It's up to you. Give a temporary codes to guests, visitors, housekeepers, or employees. Never worry about lost, stolen or copied keys again.
4:Keeping Your Home Safe: Locks automatically as you leave. Smart lock Front Door set out to provide extra home security.with auto lock( 5-120s,customize) to keep your house safe, After somebody enter incorrect passcode 5 times, this smart lock will be actomatically locked for 5 minute.
5:Smart Reminder:Smart lock or App will remind you to replace the battery .When the smart lock keyless lock in low battery, Smart Locks will alarm, or you can check the battery l