When Audio-Technica engineers developed the new IM headphones, they centered the design around the three most important components of a superb listening experience: 1) Sound, 2) Fit and 3) Functionality. With that in mind, the ATH-IM03 in ear monitor headphones were born. The complex tuning circuitry housed within the triple balanced armature drivers divides and distributes your audio signal for an ideal, accurate sound reproduction that is so pure you have to hear it to believe it. And the innovation doesn't stop there - the headphones were specially designed to fit and seal within the ear for the ultimate in-ear monitoring. Each pair comes equipped with three sizes of silicone earpieces (S/M/L) and Comply™ foam earpieces (M) for a customized fit. Detachable cables with formable wire and a carrying case add additional convenience and functionality to the headphones, allowing you to easily take them wherever life takes you.