I have an old set of Kenwood radios with external speaker mics, but they are getting old. So I bought a pair of motorola GMRS radios and these external speaker mics. I must say, they feel really well built. They are solid, with a good clip. There is just one problem.  They suck.  Talking and listening through these things is like talking and listening through a pillow. It was such a disappointment. I had to ask my friends to keep repeating themselves. Now I have to shop all over again. Don't get these.