Kwikset Aura Reach Matter + Bluetooth Smart Keypad Electronic Deadbolt, Model #7736519. Fits standard 2-1/8" bore doors ranging from 1-3/8" to 2-1/4" thick. Includes built-in alarm, pre-installed batteries, lighted keypad, voice control compatibility, and SmartKey Security re-keying technology. Compatible with Amazon Alexa, Google Home, and Apple HomeKit via Matter protocol. Condition is like new, in original box, with no damage or missing components.