The eKEY software uses your Smartphone as your Lockbox key. You may choose from many different Palm, Windows Mobile, BlackBerry & iPhone devices. The eKEY updates wirelessly so you can do business anywhere. There are two service levels available: eKEY Basic which provides basic Lockbox functions, and eKEY Professional adds MLS data saved to your phone, links Google maps to the listings, and delivers showing details to your phone. The most recent versions use Bluetooth technology to communicate with the lockbox, i.e, you do not need a FOB to access the lockbox. This service is included as part of your PSAAR membership.