This product is NOT compatible with the first generation iPhone, or any other device that features a recessed audio input. Specifications and design subject to change without notice. Do not listen through headphones at an uncomfortable volume or at loud levels for long periods. Set the volume to low when you first plug in. Do not use when the headphones would be an unsafe distraction, such as while driving, biking, or crossing a street. Pioneer and the Pioneer logo are registered trademarks of Pioneer Corporation. ©2014 Pioneer Electronics (USA) Inc.