Solar Panels New Zealand
Apple 30-Pin - 3.5x1.1mm Adapter
Apple 30-pin male plug on one end and female 3.5x1.1mm plug on one end. Alternatively, you can charge these products from the battery with the USB cable supplied by Apple.
If you are caring a product which requires a 30-pin connector for charging and also want to reduce weight size and cable tangle in your portable kit, then this is an excellent addition.