3.5mm Listen Only Earpiece Fits two-way radios (audio only), radio speaker mics, remote mics, MP3 players, and other audio accessories with 3.5mm earphone jack. Reinforced earphone clip provides cable retention and eliminates strain on earphone. Ideal for high noise level environments and discrete listening. 100% compatible with all original equipment manufacturer (OEM) parts Includes Left and Right Medium Earmolds earplugs