Ghost stryke hearing protection - AXIL Ghost Stryke I Hearing Amplifier

I thought these Ghost Stryke devices would be better to use when wearing glasses vice over-the-ear muffs, but I can't get them to stay in my ear. They come with different size plugs to use and while the plug goes in the ear Ok, the plastic battery unit itself works it's way out and eventually pulls the plug out some allowing noise into the ear. This is not good when on the firing range, gets loud. I really tried to give these Ghost Strykes a fair shake, but I had to go back to my Peltor tacticalpro ear muffs. Save your money, these little expensive things things are over rated.