The HD 280 Pro is Sennheiser's most significant closed, around-the-ear headphone to be introduced in years. Designed to exceed the demands of the professional environment, the HD 280 Pro boasts extremely robust construction combined with the sound quality, modular design and aggressive noise isolation the necessary in the field. The unique collapsible design, combined with swiveling ear cups, offers maximum flexibility in any application.

Features

• Closed, dynamic stereo headphones
• Accurate, linear sound reproduction for critical monitoring applications
• Optimum impedance ensures universal compatability
• Space saving design features collapsible, rotating earcups
• Up to 32 dB of ambient noise attenuation
• Neodymium magnets for high maximum SPL
• Single-sided, coiled cable with 3.5 mm mini jack with locking 1/4" adapter
• Very comfortable, even if used for long periods of time
• Rugged construction with user-replaceable parts

Technical Data:

• Color: black
• Wearing style: Headband 
• Frequency response (headphones): 8 - 25000 Hz 
• Sound pressure level (SPL): 102 dB (IEC 268-7) 
• THD, total harmonic distortion: 0,1 % 
• Contact pressure: 6 N 
• Ear coupling: circumaural 
• Jack plug: 3,5 / 6,3 mm stereo 
• Connection cable: Coiled cable (min. 1m / max. 3m) 
• Transducer principle: dynamic, closed 
• Weight w/o cable: 220 g 
• Nominal impedance: 64 Ω 
• Load rating: 500 mW