Paksh / Chicago Cutlery Essentials 8-Piece Steak knife Packaging Set ERGONOMIC DESIGN: One-ear design is easier to use and adapts well to the ear structure and does not fall off compared to most in-ear or plug-ins. Securely fit in your ear, you only need to put it on, then it works, no troublesome wires from tangling or around your neck. It is comfortable, no hassle and no pain after long hours of wear.