Sennheiser HD25 70 Ohms Capsule, Capsule, HD 25-1 / HD 25 CII / HD-25 II no. 40178E, Impedance: 70 Ohm, Plug-in connection, Thickness: 27 mm, Diameter (with border / without border): 68.5 / 64 mm, Suitable for left and right side, Includes: 1 Piece, Sennheiser no. 570609
