The single most impressive feature of Discovery 975 is its styling, which is questionably both cool and professional. Stuck in your ear is a rounded diamond-shaped box with a silicone ear tip on one side, and a curved, wand-like microphone on the other, pointing in the direction of your mouth. Most of the body is a gunmetal-colored metallic plastic, with a small bit of leather topping the box next to your ear. Two small buttons—the standard…