First off, it would appear the WatchOn app only supports two devices. It says you can add audio receivers and what not, but it never gives you the option to do such. Also, the brands are extremely limited (didn't have Panasonic as a projector brand and the TV one didn't work) bit of a disappointment.
Device also seems to have a lot of connectivity issues running on WiFi AC. It certainly is fast while it works though. It connects at 433 Mb/sec. Could be router related as this is the only AC device I have. I have an ASus Rt-ac66u. Works fine on 2.4 GHz though. I'm about 5 feet from the router FYI.
EDIT:
Ok, I lied..I figured out how to add more devices. It doesn't do it during the initial setup, but if you go to menu, settings, and tap on the room you can add more. It actually has some fairly nice options.
Device also seems to have a lot of connectivity issues running on WiFi AC. It certainly is fast while it works though. It connects at 433 Mb/sec. Could be router related as this is the only AC device I have. I have an ASus Rt-ac66u. Works fine on 2.4 GHz though. I'm about 5 feet from the router FYI.
EDIT:
Ok, I lied..I figured out how to add more devices. It doesn't do it during the initial setup, but if you go to menu, settings, and tap on the room you can add more. It actually has some fairly nice options.