I think this is a fake tactical ear product. It worked fine for a while, but broke down three weeks after purchase. It's just not acceptable for the field. Luckily it's not exactly crap, and I could hear the chatter on the radio when I cranked the volume all the way up. It also broke my listen-only fix. I recommend you stay away from this product unless you work in a very low stress and bright environment. It is not intended for everyday use in the field.
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