The Milocks Xkk-02Aq Digital Door Knob Lock For Interior Doors Features Keyless This door lock is great for bedrooms, closets, storage rooms, and many other interior doors throughout your home. No need to carry keys, share keys, or make extra copies of keys. Simply add and delete codes as needed. You will wonder why you didn't buy a keyless door lock sooner. Most importantly, this lock is a direct replacement for most door knobs on standard door prep. The latch is adjustable to make sure it fits the widest range of applications. No handy man required, installation is just as easy as any other lock. Keyless keypad entry - add up to 10 keypad users Remote control entry - add to 10 remote controls Multi-lock control - 1 remote can be programmed to multiple locks Easy programming - simple keypad and remote programming procedure adds or deletes users in seconds Smartphone control - smartphone compatible using insteon home automation system