I am not certain why there are so many positive Amazon reviews. I may have gotten a lemon but they did not work at all.
I was in my house with the television on at a normal volume. When I turned on the Active Noise Cancellation there was absolutely no difference in the ambient noise.
I would not recommend anyone buy these.
Can I the E7 headphones with a wire as well as Bluetooth ??? My devices are not all bluetooth.