Kwikset Corporation 99100-004 Z-Wave SmartCode Electronic Touchpad Deadbolt, Featuring SmartKey in Polished Brass, Works with Alexa via SmartThings, Wink, or Iris Works with Alexa for voice control (hub required, Alexa device and hub sold separately). Works with Amazon Alexa for voice control (hub required, Alexa device and hub sold separately) Stores up to 30 personalized user codes at a time NOTE: Kindly review the videos under the image section and user manual under product details for set up and user guidance. For use on exterior doors where keyed entry and security is needed. Replaces any deadbolt for keyless entry convenience. Backup keyway featuring SmartKey re-key technology. Compatible with Z Wave home automation systems. Z Wave certification numbers: ZC08-13100007; ZC08-10020007; ZC08-11110001