£199.95
RRP: £199.95
 
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The ER4 MicroPro earphones are the next best thing to live music, with noise isolation far surpassing that of active noise-canceling earphones. The ER4s require NO batteries, and can be plugged into any audio source. Their external noise exclusion - 35 dB with 3-flange eartips, 42 dB with foam eartips - allows you to hear the full dynamic range of recordings without having to play them at unnaturally high and unsafe levels.

Features

• Transparent, reference-quality sound
  
• For audiophiles, performing musicians and recording engineers
  
• For mixing, monitoring and critical listening
  
• Accurate real-ear response
  
• Unsurpassed isolation from outside sound

Specifications

• Impedance (ER4P): 27 Ohms nominal
  
• Maximum output: 122 dB SPL
  
• Maximum continuous input (ER4P): .75 Vrms
  
• Weight: less than 1 oz.

System Requirements

• All iPods

What’s in the Box?

• ER4 MicroPro earphones
  
• 5 ft. cord with 3.5 mm stereo phone plug
  
• 1/4" stereo phone adapter plug
  
• Six 3-flange eartips
  
• 10 foam eartips
  
• Filter changing tool
  
• 4 replacement filters
  
• Shirt clip
  
• Pouch
  
• Storage box