Kwikset 99100-078 is a smart lock that allows you to lock and unlock your door remotely using your smartphone, tablet or computer. It is also compatible with popular smart home systems such as Amazon Alexa and Google Assistant. In addition to remote access, the lock also features a keypad for manual entry, a built-in alarm, and a backlit keypad for easy use at night. The lock is easy to install and comes with everything you need to get started, including mounting hardware and batteries.