The Klein Electronics Star F Single-Wire Earpiece is a great choice for various PTT phones. It features a clear, quick-disconnect audio tube and comes with a clothing clip. You can opt for a black tube. There's an in-line PTT button and microphone. It's adjustable for left or right ear use and includes eartips. This earpiece works on Sprint Direct Connect, Kyocera DuraPlus/DuraXT Series, Samsung Convoy, Casio Ozone Phones and many others. Note that this connector is a 2.5mm connector with PTT ring (not 3.5mm) and it's not for the DURAFORCE XD Models. It's also compatible with a wide range of Falcon phones.

Using the Klein Electronics Star F Single - Wire Earpiece is easy. First, check if your phone is in the list of compatible models. Then, connect the 2.5mm connector with the PTT ring to your phone. Adjust the earpiece to fit your left or right ear as you like. Clip it to your clothing using the provided clip. When not in use, gently disconnect it from your phone. Make sure to keep it away from moisture and dust. If the earpiece gets dirty, you can use a soft, dry cloth to clean it. Remember, this earpiece won't work with the DURAFORCE XD Models, so double - check your phone model before using.