Designed to fold flat into a case about the size of an iPad® (case included), Denon's Globe CruiserTM headphones, AH-NCW500SR and AH- NCW500BK, are exceptionally portable. Created with the frequent business traveler in mind, Denon's Globe Cruiser On-Ear headphones provide exceptional sound quality, Bluetooth 3.0 wireless connectivity, advanced noise cancelling, and integrated controls & microphones for a peaceful yet productive travel experience. Denon's patent pending control wheel and integrated On-Ear cup microphone allows for easy control of Apple® iPod®, iPhone® and iPadTM and clarity of phone calls and control of SiriTM voice recognition personal digital assistant (available on iPhone 4S). Denon's patent-pending pentagonal-shaped memory foam ear pads provide comfort for long flights. Also Included: a cable (for times when Bluetooth connectivity is not allowed), airline adapter (for in-flight listening), flat carrying case with Karabiner, and USB charging cable. Further enhance your listening experience by downloading the Denon Travel app, available for smartphones.