Only available from Hammacher Schlemmer, these are the Bluetooth headphones that apply active noise cancelling technology to eliminate the distracting sounds of a home, office, or when traveling. Microphones inside and outside the earcups sense disruptive low-frequency noise, and internal circuitry generates a countering sound pattern that cancels those sounds, so even an airplane engine’s roar becomes little more than a hum. The leatherette ear cushions form an acoustic seal that reduces higher-frequency sounds, so wearers can enjoy the rich, tonally balanced audio. It connects via Bluetooth to any device within a 33' range and comes with a carrying case. Charges via USB; a three-hour charge provides up to 20 hours of power.