they would blow out your ear drums. Lots of messing around to get the product to work. They are beautifully finished and very attractive. For the price point, you are getting descent sound quality. It’s a great key holder! They held up nicely and the bottoms were tough enough to prevent any punctures from the rocks and glass around there since people like to drink and break bottles🙄. I prefer male vocal on the hd600 because it sounds fuller, and I prefer female vocal on the Ety because it sounds sweeter. Calidad sonido I dont care for heavy bass, but it is necessary in the balance of all things. This is a very well made and good looking headset (my first) and I thought I would buy a decent known brand.