Sennheiser mx550 mx 550 In-Ear Headphone for IPOD/NANO/VIDEO NEW

• Description:
  The powerful MX 550 earphones feature Sennheiser`s innovative "Basswind" system, a symmetrical cable and an ultra-lightweight volume control.
  
• Features:
  Ideal for portable players such as MP3 or CD
  
  Powerful stereo sound
  
  Balanced "Basswind" system
  
  Metal "Sound Protection System" protects the acoustic systems
  
  Rugged design
  
  Cable with anti-kink sleeve
  
  Ultra-lightweight volume control
  
  Symmetrical cable (1 m)
  
• Technical Data:
  Frequency Response: 18-21.000 Hz
  Impedance: 16 Ohm
  Sound Pressure Level: 113 dB (1kHz/1Vrms)