C2G/Cables to Go 40643 6.3mm Stereo Male to Dual 3.5mm Stereo Female Adapter<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> This adapter allows two 3.5mm stereo headphones to share the same 6.3mm (1/4in) stereo output such as headphone jacks from amplifiers， educational equipment， etc. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41QWeFmQjCL.jpg" noproxy>