Amazon.com: Cmple - 3.5mm Stereo Plug to 2X 3.5mm Stereo Jack Adapter, 3.5mm Stereo Male to 2X 3.5mm Stereo Female Coupler, Audio Jack for Headphones - Black : Everything Else
Headset adapter with headphone/mic plugs - Audio Cables and Adapters | StarTech.com Europe
Storite 3.5mm Jack 1 Male to 2 Female Stereo Headphone Earphone Jack Y Splitter Audio Auxiliary Adapter Cable (Black) : Amazon.in: Electronics