Fits two-way radios (audio only), radio speaker mics, remote mics, MP3 players, and other audio accessories with 3.5mm earphone jack
Soft silicone ear bud to fit snuggly in your ear with a transparent acoustic tube
Heavy Duty Material. Superb Audio Quality. Rugged Design
Please make sure to avoid the product getting wet or use the product in moisture condition. If it stops working, it’s because there’s moisture inside the tube. Blow the tube to make the moisture out of the tube and the earpiece will work perfectly