Kwikset 954OBN Obsidian Touchpad Electronic Keyless Smartcode Deadbolt with Z-Wave Round Corner Adjustable Deadbolt, 2-3/8" or 2-3/4" BacksetRound Corner Full Lip Deadbolt StrikeNA2-1/8" CrossboreObsidianNAExpanding Your Security System Solution With Home Connect Technology, A Kwikset Obsidian Keyless Entry Lock Will Allow The Lock To Communicate Wirelessly To Security And Home Automation Systems Via Z-Wave To Enhance Your Customer'S Lifestyle.Works With Amazon Alexa Via Samsung Smartthings And/Or WinkFull 128-Bit Encryption SecuritySecurescreen™ - Patented Technology To Help Prevent Code Detection From Fingerprints On The TouchscreenKeyless Entry - No More Keys To Hide And No Keyway To Pick Or BumpCode Alarm - Alarm Sounds After 3 Incorrect Codes Are Consecutively Entered And The Screen Temporarily Locks OutUser Codes - Up To 16 Customizable User Codes For Increased SecurityMastercode - Improved User Access Code ManagementCustomized Automatic Door Locking After 30 Seconds For Peace Of MindTamper-Resistant Interior Cover - Prevent Unauthorized Access To Programming ButtonsLimited Lifetime Mechanical and Finish, 1 Year Electronics Warranty