I've been combing the electronic stores and big box stores for simple older walkman type headphones with volume adjustment, but no luck. All the headphones now are fashionable designer/rapper like for computers and me phones etc. None have manual volume adjustment, unless you want to pay well over $100. The speaker on my Compadre is too loud and screams out...Look at me! while detecting. So I need to get some simple volume adjustable but not costly headphones. Any suggestions?