Sennheiser HD 25 Headphones

Specs:

• Capable of handling very high sound pressure levels
  
• Rotatable capsule for single-ear listening
  
• Frequency response: 16 - 22000 Hz
  
• Impedance: 70 Ω
  
• 3.5/6.3 mm stereo jack plug
  
• 1.5m Cable length