I am an interpreter and my job is on the phone all the time. I have been trying different headsets from the expensive ones to the average price but they were not good. I developed ear pain and headache after a while and I was upset because I thought I might not be able to continue my job as an interpreter until the time that through social media I got to know about Earthing OZ. I immediately checked their website and I checked the earphones. I ordered one for my husband first. He was very happy while he was using his head phone and I ordered the second one for myself. Since then the ear pain and headache have gone. I have already asked all my colleagues to use this headphone for their job. I highly recommend the Earthing OZ.