Aerial7 Sumo Earbud Headphones Candy, One Size Engineered to deliver the highest-quality listening experience from your Apple iPodA, iPhoneA, BlackBerryA, or other mp3 player, cell phone or music device. Built-in microphone for use with iPhoneA, BlackBerryA and other mobile phones. Includes 3 different ear gel sizes. Driver Diameter: 10mm