XBee Explorer Dongle Query

Hello! I am planning to buy 2 XBee Pro Modules from Sparkfun. With that, I will also buy Xbee Shield, Lilypad XBee, and Explorer Dongles.

My concern is that do I really need to buy 2 Explorer Dongles?

I know that the explorer dongles are used for connecting the XBee module to the PC/Laptop for configuration using XCTU software. So why do I need two then? I just see in the guides on the web indicating that I need two explorer dongles.

I just need confirmation or corrections thank you :slight_smile: