Well the company seems to believe it's safe to wear while transmitting since they often use images like this to sell their product.
It should be easy enough to figure out.
All you need to do is get a little RF meter and see what the levels are.
Of course...a consumer reporter I worked with did a whole series on RF exposure.
We went all over the place, power lines, different business situations, metal detectors at security check points, recording the RF levels.
It was really eye opening to see how high those levels were at some locations and, with some minor investigation, discover those levels were obviously over the government "safe" standards...which no one wanted the employees to know.
Feeling proud of how the series was working out...it dawned on us to do the same around the tv station. Engineering department and even just average hallways in the tv station building. Those levels were even higher than anything we found anywhere else!!!!
Guess what happened when we mentioned that to the powers that be?
You got it! The series never saw air and we were told to NEVER take readings like that again around the building because all we were doing was fear mongering! The assured us there was nothing to worry about and even though we used two different RF meters to verify results, those numbers don't really mean there's any danger.
Makes you wonder why other countries around the world have laws making sure cell phone makers have clear warnings about exposure, just like cigarettes do here in the US, but there are no warnings for cell phone customers here.
No...I am not surprised...but I don't think I'd be strapping a liveU on my back either.