Identify each Pro 8 speaker

Bose product name Pro 8

I downloaded the L1 Mix app and it works very well. I named my two Pro 8s Lee1 and Lee2 on the app. Problem: How do I know which is which just by looking at the app? Do I need to tie a red ribbon on Lee1, for example? 

 

It seems Bose puts a lot of energy into extolling the virtues of a single Pro 8 system but are sadly lacking in details regarding a duel system. Some people are crazy enough to buy two 🤣! Ideas? Thanks...