BuyCheapCables 3.5mm Stereo Plug to 6.35mm (1/4 Inch) Stereo Jack Adaptor/Adapter Connector 1: 3.5mm Stereo Male Connector 2: 1/4" Stereo Female Black molded plastic construction | Nickel-plated contacts Attach to 1/4" headphones now! Lifetime Warranty!