Sennheiser HD25-1 II Closed-Back Headphones Item Weight: 5 ounces The capsule is rotatable for one-ear listening Capable of handling very high sound pressure levels Offers high attenuation of background noise Ideal monitoring headphones for cameramen and DJs Lightweight at only 5 ounces The capsule is rotatable for one-ear listening Capable of handling very high sound pressure levels Offers high attenuation of background noise Ideal monitoring headphones for cameramen and DJs