What is Amazon Key for Business ?
Accurate Intercom & Mailbox Corp. nor Amazon will charge you for the installation or product. This is a zero product cost and no contractual obligation.
This allows drivers to make autonomous, "unattended" deliveries without interacting with staff, touching a call box, or waiting outside for access.
This will reduce the need for you to maintain staff during Amazon's delivery window, and allow employees to spend less time managing packages and more time keeping residents happy.