6.3 mm Female to 3.5 mm Male Stereo Audio Convertor (Black) Stereo Cable Adapter Jack Plug, Another Way to Expand Your Speakers to Headphones, Passive Adapter, No Power Required, Simply Plug & Play, Carrying Signal for Both Audio Channels, Compact, Lightweight, Easier for Storage, Great For Using with Headphones Guitars Computers PCs Laptops & Recording Equipment