[Landlord&Landlord] Sifely smart door lock is an excellent solution for airbnb short rent landlords, rental property management and self occupied residents. Generate passwords remotely and share them with your visitors. [Multiple unlocking methods] Advanced five in one keyless entry smart door lock: fingerprint+password+remote control key+smart phone+key. [Easy to install] It can be easily installed in a few minutes with a cross screwdriver. No additional practice is required. No locksmith is needed. The left and right door handles are reversible. Due to the size of the lock, it may interfere with the screen door. [Remote control] If it is paired with Sifely WiFi gateway (optional accessory, sold separately), you can lock/unlock your smart door lock anytime and anywhere, set your password remotely and view the real-time access log. [Satisfaction guaranteed] The application/software can be used permanently and free of charge. No hidden expenses or long-term costs. 30 day money back guarantee, 1 year product warranty and lifelong customer support from the date of purchase.