In a different twist to the OP's question, I actually use the same earpiece I use for my radio at work. Our department's Motorola radios are equipped with a 3.5mm jack so all radio traffic goes into my ear and not out of the external mic. And you don't have to go to a police supply store or the like, they are available all over ebay, amazon, etc... I buy them for about $10 a pop, and they last a long time.



The sound is just fine (not super duper like a pair of Westone's I assure you). I also like to have the other ear open to hear what's going on around me. The other great feature is that they are designed to stay in during activity and are really easily cleaned.