The in-ear device is shaped to fit a wearers ear morphology. The device includes a main body having at least three generally convex sides, an innermost face and an outermost face. A first side is shaped to fit the tragus of a wearers ear, and a second side is shaped to fit an antitragus of a wearers ear. At least three tips, generally rounded, join respective two adjacent sides. The main body is within an outer ear plane substantially perpendicular to an entrance of an ear canal of a wearers ear.
