You might want to use your own earplugs or try the IPOS Earplugs. We think these match Equestrian needs better than most smartphone earplugs. Especially for equestrian sports, we have selected an earplug that rests comfortably on your ear. It uses an ear hook for more comfort and an extra wire behind your neck in case it might come off.
The special Audio Technology provides you with your feedback on rein tension and time/ intensity info while still allowing you to hear your surroundings crisp and sharp. Even with the IPOS Earplugs in your understand people talking to you.