Kwikset Halo Electronic Deadbolt, Matte Black, Residential Commercial/Residential, Brass/Steel, Operating System Compatibility: Android, KW1, SC1 Keyway, 1 -Cylinder, Adjustable Latch, 50 User Codes, Rekeyable/Resettable: Rekeyable, Battery Power Source, Wi-Fi Connectivity, 1 x 2-1/4 in Faceplate, Round Corner Strike, 2-3/4 x 1-1/8 in Strike, Projection: 2-1/2 in, 1-3/8 to 1-3/4 in Door Thickness, Adjustable Backset, 2-3/8 to 2-3/4 in Backset Unit: EA UPC: 883351754637 Model Number: 959CNT 514