Where in the world are you? If in the US, this is the one I have - very nice little machine, works well. 
https://www.amazon.com/gp/product/B01HPCB2FW/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
Edit: I forgot to mention that this jump starter comes with a great little case to keep everything together, tidy and dust-free. Really nice product.