Coby CV194 Noise Cancellation Digital Stereo Folding Headphones (Black) (Discontinued by Manufacturer) Noise cancellation digital stereo folding headphones, active noise cancellation system minimizes background noise experience Power 40mm drives deliver deep bass sound, adjustable headband and full-size ear cups with padding for comfort during extended wear Dingle-sided detachable cord minimizes tangles Gold-plated 3.5mm stereo plug, dual-prong adapter for airplane use Connectivity technology : Wired