Sennheiser HD 555

Features

• Enjoy music in a completely new way: "Eargonomic acoustic refinement" (E.A.R.) design channels the audio signal directly into your ears
• Advanced Duofol diaphragm technology almost eliminates standing waves inside the capsule
• Optimized neodymium ferrous magnet systems
• Outstanding wearing comfort for long listening sessions
• Long life due to easily replaceable parts
• Lightweight aluminium voice coils for high efficiency and excellent dynamics
• Extremely comfortable velour ear pads
• Surround reflector for an extremely spatial sound reproduction
  

Product Description From Sennheiser:

The HD 555 open, dynamic stereo headphones feature a special internal surround reflector. It generates an extended, spatial sound field, making this model the ideal headphones for home cinema as well as music. Many innovative features such as E.A.R. technology and optimised Duofol diaphragms deliver a whole new level of audio reproduction.