Factory Refurbished A condition Travel in peace and quiet with these compact, high quality headphones AKG's K 495 NC headphones are a life saver for busy professionals on the go. They use built in active circuitry to reduce external background noise, for a quieter, more relaxing listening experience. The softly cushioned leather earpads and headband stay comfortable for hours at a stretch. Brushed metal parts and solid construction lend these 'phones a luxurious and durable feel. AKG has over 60 years of experience designing headphones, so you can count on accurate, uncolored sound. Enjoy your music wherever you roam The K 495 NC's built in rechargeable battery provides up to 40 hours of noise canceling operation per charge, and comes with its own compact wall charger. You can even charge up using the supplied USB charging cable and one of your computer's USB ports. AKG's patented folding design allows these 'phones to collapse down to a super compact size for easy travel. They'll connect to virtually any portable audio device with a mini headphone jack, plus you get an airline adapter, so you can plug into in flight entertainment systems and block out engine roar. A handy carrying case stores the headphones along with all the included accessories