Lockitron lets you share temporary or permanent virtual keys with friends and family. Receive a notification when your guest arrives for the first time and make sure your door is locked from anywhere in the world. Lockitron will even send you a notification when someone knocks at your door. Thanks to built-in Bluetooth Low Energy, Lockitron will let you in simply by having you walk up to the door. Best of all, Lockitron is not a replacement door lock and doesn't require a locksmith to install. Renters can use Lockitron too since you get to keep your current keys. Letting people into your home should be simple, seamless and delightful. Lockitron is based on this belief and every aspect from our hardware to our mobile apps is designed from the ground up to seamlessly share access. [email protected] http://lockitron.com/