Encased in an exceptionally durable machined aluminum housing, the ATH-EM9r clip-on headphones provide outstanding performance in a sleek, lightweight package. These dynamic headphones offer a secure, comfortable ear-fitting design for long-wearing listening and sophisticated driver technology for outstanding sonic clarity. Each ATH-EM9r earphone is equipped with an innovative sliding axis for easy adjustment and a truly custom fit. Soft rubber support loops and large, lightweight ear hangers are engineered for hours of listening without fatigue.