Yale Linus smart lock 05/101/200/SI silver color allows you to lock and unlock your door thru your phone and no matter where you are (thru yale connect wifi bridge) see who is coming and when, grant guess virtual keys, check whether the door is open or locked. ? Item dimensions LxWxH 15 x 5.8 x 5.2 centimeters ? Weight 623 Grams Included components ? Linus Smart Lock x1 ? Mounting plate x ? DoorSense(TM) magnet x1 ? Allen key x 1 ? AA batteries x 4 ? Quick start guide x 1 ? Linus Smart Lock x1 ? Mounting plate x1 ? DoorSense(TM) magnet x1 ? Allen key x 1 ? AA batteries x 4 ? Quick start guide x 1