Weighing just 9.2 oz, the HD 600 is an audiophile grade professional stereo headphone. The Sennheiser Headphone boasts an advanced diaphragm design that gives you a crystal clear sound by eliminating the acoustical disturbances. The HD 600 has lightweight aluminum voice coils that enable an exceptional transient response. The Sennheiser Headphone delivers a natural and accurate sound that is required for hi-resolution recordings. This professional stereo headphone is tweak friendly, detachable and tough-built so that it works well in different environments.