Creative Labs Creative Headphone HN-505

FEATURES- High-quality Noise-cancelling Headphones Creative HN-505 headphone features active noise-cancellig circuitry to significantly reduce surrounding environmental noise, including that of an airplane engine. It's lightweight yet durable design makes travelling comfortable and noise-free, perfect for all your travel needs.* Active noise cancelling fo 15dB at 300Hz removes noisy engine and surrounding noise for quiet music listening.* Foldable, compact design which is perfect for travelling.* 3.5mm plug and Dual plug adapter included. Can be used with all standard headphone jacks as well as an airplane headphone jack.* Lightweight design with soft earcups won't weight you down and are comfortable to wear. -- SPECIFICATIONs -------------------------------------DRIVER UNITS - 30mm rare-earth magnet transducerFREQUENCY RESPONSE- 20Hz to 17kHz NOISE CANCELLING - 15dB at 300Hz IMPEDANCE - 32 ohmsSENSITIVITY - 121dBINPUT PLUGS - 3.5mm and Dual plug adapters CORD LENGTH - 1.6 meters NET WEIGHT - 146 grams (without battery)