Terrible enhancement - AXIL XCOR Digital Tactical Earbuds

I would not recommend these earbuds I bought them for hunting my hearing is not good so I tried the hearing enhancement all they do is squeal in your ears. I tried everything to get them to stop. I wear hearing aids so I know what to expect. I have otto ear buds that protect and enhance great for shooting and hunting. optics planet will not take returns now i know why these are not what there advertised as. disappointed