- Single Earpods Eco Friendly Product Stylish Design For Double Ear Users Human-Ear Capable Sound Compatible All Kinds Of Iphone, Smartphones & Mp3 Players, Adjust Earphones Sound To The Proper Volume - Loud Sound May Damage Your Ears - For Traffic Safety, Never Use The Headset While Riding A Bicycle, Motorbike And While Driving A Car - It Is Dangerous To Increase The Sound Volume Too Much Because You Cannot Hear External Sounds, Take Great Care About Traffic Around You