The Superman Rubber Symbol Earphones are compatible with any 3.5mm stereo plug, which includes most earthborne devices like Iphones/Ipads/Ipods and...well...pretty much anything! I think they even use a 3.5mm on Krypton; wasn't Marlon Brando listening to Bobby Darin's 'Beyond the Sea' in the first Superman movie? Maybe that was the Donner cut. Anyways, the Superman Rubber Symbol Earphones are of course earphones featuring the Superman symbol, and these earphones come with 3 different ear tips for a nice, snug sizing! You never know when you'll have to fly around the Earth to save Lois Lane, right?