Hi, I'm not an expert on other products, but I can give you some user feedback on this one (Hama) as I've been using it for a while. I have connected it to several different headphones (3-4) but not the bose qc35, and it has a small latency that I find perfectly acceptable (latencies tend to irritate me normally). The latency depends on the transmitter but sometimes also on the receiver, or at least on their interaction... So the experience can be different depending on the helmet. The main advantage of this product (one of the reasons I bought it) is the possibility to connect to 2 headsets at the same time... So it's convenient to watch TV with 2 people... An important point to note: it needs a USB source to work. I have one on my TV so no problem, but otherwise you need to be able to connect to a USB mains. I hope this feedback has helped you. I hope this feedback has helped you. S. Marx