This is great my only issue is that it’s a bit too heavy so it tends to tilt forward when you have a few plugs in it. Pros:Cheap with mostly metal body. Not nearly enough cotton on ends. Very good sound quality But as this is too much work to actually find out, Im giving up. The HD 650 pick up the peripheral sounds. Thats important to me and a good indicator of sound quality. another cool thing is the tag on the shirt is actually 2 stickers. 39 und habe sie extra in Gr. - Fantastic hearing protection.