Genius GHP-04NCs Noise-Cancellation Headphones: Inverted signals are used to cancel out background sound. The headphones are additionally equipped with a 40mm bass driver, plus leather earpads, a soft headband sponge, and swiveling earcups.
Other features include a 6.3mm dual-plug stereo adapter that works with a variety of airplane audio sources, and a 50-hour run time when using two AAA batteries. A leather carrying pouch is supplied. The GHP-04NCs are currently priced at $50, and available from various retailers and distributors.
