And you couldnt load more than 70 lbs on it as it would become impossible to pull due to the friction from the terrible pulley. If you are a cross fitter and looking for something to do kipping pull-ups on, this is not for you. I also want something that feels good to wear, and this feels amazing. As long as you are within 50ft, you shouldnt run into any issues. The noise cancellation makes it excellent to be used when there are noises around. The highs and midrange are airy, clear and lifelike. That?s just my preference. You can see the spec. The connection to the dongle is the worst Ive ever experienced. Not the Roomyrocs.