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Simply smart(for iOS ONLY, Android not supported) > Lock and unlock your door by(only) asking Siri or with the Apple Home app / LinkWise app
Advanced security & activity management > Manage up to 30 users (friends, familiy members, dog watcher, baby sitter, etc.) by assigning a unique pin code (4-8 digits) valid for a customizable period; track door activities through automatically recorded logs; optional auto-lock and more all available exclusively in the LinkWise app
Extended battery life > Industry-leading power saving technology designed to last 4 to 6 months using high quality 4 * AA Alkaline batteries (e.g. energizer, duracell)
Remote access (HomeKit) > Lock and unlock your door from anywhere when you have an Apple TV (4th Gen or later), HomPod or an iPad close to your door (best within 20 feet)
Excellent reliability and compatibility > Solid mechanical structure; fits on most standard doors: 1 3/8 inch (35mm) to 1 3/4 inch (45mm) thick with 2 1/8 inch (54mm) face bore hole; 2 3/8 inch (60mm) and 2 3/4 inch (70mm) backsets