Interesting reading, not only were five of their systems operating in completely different bands to what the FCC had approved (some transmitting in band I instead of band II and two where one should have been band II frequencies but in band IV and vice-versa, there were some operating in the aircraft band, there was one where they did not know what frequency the microphone operated on and 9 with no FCC ID/authorization at all.
I wouldn't be surprised if they were forced to do a recall, esp. as some of their devices operated on completely different frequencies to those approved and I would guess shown in the manuals.
Just shows why good wireless costs money, as it's much cheaper to make items when you don't follow teh rules.