Don't let the outside world invade your audio space... get noise-canceling headphones, and listen to your music in peace. The MDR-G94NC noise-canceling headphones reduce outside noise by up to 70 percent, creating a quieter background for your music. The behind-the-neck headband lets you wear the headphones without getting in the way of your hair or hat, and the tangle-free cord helps reduce knots and tangles. 
Great travel headphones!

FEATURES:

• Noise Canceling Headphones reduce outside noise by up to 70 percent. 
• Behind-the-neck headband won't interfere with your hairstyle; lets you wear a hat; establishes a new look on the street. 
• Folding headband makes for easy storage in a backpack, briefcase or purse. 
• 30 mm diameter drive units are larger than many portable headphones for deeper bass, lower distortion and wider dynamic range; frequency response extends down to a low 12 Hz. 
• Neodymium magnets for maximum energy and minimum size; Neodymium packs more magnetic energy per ounce than conventional Ferrite, Samarium Cobalt or Aluminum magnets; helps produce ample sound output (106 dB/mW sensitivity). 
• Oxygen-free copper cord for maximum conductivity, minimum noise; conducts electricity better than conventional copper. 
• Gold-plated mini-plug resists corrosion for maximum conductivity, minimum noise. 
• Tangle-free cord material helps reduce knots and tangles 
• 1.0m extension cord is a detachable cord that is removable when using in a situation when too long of a cord can get in the way. 

SPECIFICATIONS:

• Type: Open-Air, Dynamic 

• Drive Unit: 30 mm 

• Diaphragm: PET 

• Magnet: Neodymium 

• Impedance: 24 ohms 

• Power Handling Capacity: 100 mW 

• Frequency Response: 12 - 24,000 Hz 

• Headband: Folding, Behind-the-neck, Single 

• Cord: Oxygen-free copper; Single-sided, 5 feet (1.5 m) 

• Plug: L-Shaped, Gold-plated, stereo mini plug 

• Audio sensitivity: 100 dB/mW 

• Battery Life: Up to 40 hours with alkaline battery 

• Weight: 3 oz. (85 g), without cord