Product Description Say goodbye to distraction with the mdr-zx110nc noise canceling headphones. Featuring a 12–22,000 Hz frequency response for pristine bass, mids, and treble, these lightweight headphones reduce ambient noise by 95%, so all you’ll hear is the music. Plus, you can listen for longer with 80 hours of battery life. Other characteristics: 3.5 Mm connector: y acoustic system: closed battery life (max): 80 h cable length: 1.2 M Colour of product: black connectivity technology: wired connector contacts plating: gold driver type: dynamic ear coupling: Supraaural headphone frequency: 10 - 22000 Hz headphone sensitivity: 115 dB impedance: 45 ω magnet type: neodymium weight: 150 g. Set Contains: Pluyg Adaptor for in-flight use /Operating Instruction