This JAM in-ear headphones take professional audio technology and make it personal. Drawing on expertise learned from building some of the finest loudspeakers in the world, JAM engineers created lightweight, comfortable headphones that deliver signature JAM sound. High-performance drivers generate outstanding frequency response and pure bass that is deep, powerful and accurate, which lets you hear the truth from your favorite music and artists. Fresh styling makes our JAM Ecouters as pleasing to the eyes as they are to the ears, and an in-line microphone lets you take calls without taking the headphones off