Awesome lock, I have two brand new ones sealed - if you take both will do $375. We run these across our airbnb's and they're fully trusty - battery lasts a year and recharges (no AA's) and you can remotely let people in and create unique pins for anyone you like. Has fingerprint reader too and YES they have keys hiding under the metal flap is a location for the backup regular ol' key - 5 keys included in the box. $350 at Best buy (was still $220 black friday). https://www.bestbuy.ca/en-ca/product/eufy-touch-wi-fi-smart-lock-black/15456533?cmp=seo-15456533&cmp=knc-s-71700000055264151&gclid=CjwKCAjw9NeXBhAMEiwAbaY4lhtQhgM0y-fn4_YnPalx6Hyw7aT3nvcy6VIcSWsV6r75mXGfdHRdKxoCGzsQAvD_BwE&gclsrc=aw.ds