SimpliciKey SRCED-SN-2 Remote Control Electronic Deadbolt Door Lock, Satin Nickel N/A Imported Includes 2 remote control keyfobs with 50-Feet range with secure transmission (128-bit AES encryption) and accomodates up to 8 different keyfobs. Covered backlit alphanumeric keypad programs up to 16 unique 4-6 digit codes which can be changed at any time using the keypad Heavy duty all metal construction with 6-pin bump resistant ANSI Grade 2 keyway (two keys included) Easy installation with no hard wiring needed and features reversible lock system to fit both right and left hand doors-requires 4 (AA) batteries. 2 Year electronic warranty and lifetime limited finish and mechanical warranty