Features of Bose QuietComfort 2 Acoustic Noise Canceling Headphones
Features of Sennheiser PXC 450 NoiseGard Active Noise Canceling Headphones Great sound thanks to adaptive baffle damper. NoiseGuard technology allows best possible protection from outside sounds. Talk undisturbed while wearing these headphones. Accessories include: soft case, 2 audio adapters, batteries Audio works without batteries and in passive mode.
Features of Beyerdynamic DT 990 Premium Headphones High-end headphones for high quality surround sound experience. Reproduced three dimensional acoustic sound in 5 Hz to 35 kHz. Eye catching aesthetics with soft ear buds and padded headband. Modular construction for easy replacement of parts. 1/8 inch mini stereo jack plug with 2 year warranty.