This tiny adapter allows you to easily convert a MiniJack to a large Jack. This is particularly useful if you want to connect a normal set of headphones or a computer microphone with a MiniJack to an amplifier that only has large Jack connectors.
Sandberg Adapter MiniJack-F->Jack-M
Sandberg Adapter MiniJack-F->Jack-M. Connector 2: 3.5mm, Gender: Male/female. Color of product: Black. Package width: 2.52" (64 mm), Package depth: 0.906" (23 mm), Package height: 3.15" (80 mm)