The Y Adapter Cable from Grado allows you to connect two pairs of professional-level headphones to a single headphone jack. It has a 1/4" stereo male plug, and twin 1/4" stereo female jacks. The cable is eight inches long between the jacks, and is constructed using the same high-quality materials as Grado headphone cables to prevent any kind of sonic degradation.
1 x 1/4" Stereo Male Plug
2 x 1/4" Stereo Female Jacks