The August Smart Lock is a new security system that allows you to lock and unlock the door of your house without keys, you need just an iPhone .
The device can be placed in almost any snap lock door and operates with two AA batteries. Once you are out of your house, the system detects your mobile phone via Bluetooth Low Energy technology and automatically close the door. If you have multiple roommates or want to allow and to others-trusted-buddies to enter freely at home, the device can be connected with up to 10 iPhone (iPhone 4S or iPhone 5).
The August Smart Lock will be released in 2013, and those interested can pre-order it now at a price of $ 199 .