With the all new Knox BLE series door locks, you can lock and unlock your door using your smartphone and other smart devices. Both iOS and Android devices are compatible with the app. For a residential users, all family members can be programmed to work the same lock. For a property management application you can program your phone to work as a key for all your rental units, a convenient alternative to using traditional keys. With an added keypad, this lock offers an array of possibilities to help make things easier without a key.