Multiple ways to accessData sheet + access code + application + key + key + key + voice unlock Alexa (to buy additional Wi-Fi gate to enable) + remote unlock (to buy additional Wi-Fi gate to enable). Experience the comfort of multiple unlocking methods, provides friendly access options for children and the elderly. Easy installationYou only need a screwdriver, you can install the Kucacci door electronic lock in 10 minutes, without the need for expensive hardware. Quickly replace the handle from the front door, levers, knobs, locks or existing locks. Reversible handle for left and right doors. Tips: The upper locking and the lower locking distance should be > 4'(3.937 in) Comfortable managementAfter authorizing Bluetooth permission to the NICE DIGI app, you can block/unlock the door with your phone. Quickly and easily share permanent, temporary or programmed access with friends, family, you never hide a key under the pen. Check the access records in real time, see who goes and comes from anywhere. Electronic keys are the new concealment key in the application. Effortless management for multiple properties Manage a multitude of smart locks easily with a single application. The NICE DIGI free lifetime app is perfect for Airbnb hosts, apartment rental managers and home residents, providing a smooth solution for owners with multiple properties. Rest assuredElevate the safety of your home with the KUCACCI fingerprint door lock Enjoy a lifetime of free access to the app, backed by a 30-day money return guarantee, 1-year product warranty and life-long after-sales support from the date of purchase. Don't compromise your safety, get the best protection today.