Designed for big sound in a small package. The SUMO headphones let you rock out anywhere from the subway to the studio.

• Engineered to deliver the highest-quality listening experience from your Apple iPod®, iPhone®, BlackBerry®, or other mp3 player, cell phone or music device.
  
• Built-in microphone for use with iPhone®, BlackBerry® and other mobile phones.
  
• Includes 3 different ear gel sizes.
  
  Technical Specifications
  
• Driver Diameter: 10mm
  
• Impedance: 16Ω
  
• Frequency Response: 20-20KHz
  
• Sensitivity (S.P.L.): 92±3dB (at 1KHz)
  
• Input Plug Diameter: 3.5mm iPhone®