Importer520 25 Ft 3.5mm Stereo Plug to Jack M/F Extension Cable For Barnes and Noble Barnes and Noble Nook For audio/music output ONLY, audio input not available: Mic on the cell phone headset will not work with this adapter. Connectors: 3.5mm Male to 3.5mm Female 3.5 mm audio extension cable makes hard to reach places accessible 3.5 mm audio extension cable makes hard to reach places accessible Compatibility :PC sound card, portable CD player, MP3 player, iPod, or any mini-stereo audio device with 3.5mm jacks