they do work however [SEP] i dislike that the buttons are in the back it does not show that on the products and i see that if you are deaf there is no where to put your cochlear implant the headbands do work i test it out but not with all my equipment on so i been sewing little tuck pockets on headbands for the cochlear implant because i am a crafter but if you got no knowledge in sewing and you deaf go on etsy they have what i am talking about they cost more but if you do not know hand sewing that is the way to go