With this product, you can charge most of laptops,cell phones, digital cameras, MP3, MP4 etc. Key Specifications ... and easy carrying.4. The diameters of the product’s input and output ports are different which will avoid the problem of inserting plugs wrongly.5 ... pc adapter which voltage of 24V or the similar electronics with the same voltage. Operation steps:·Plug in the USB to the USB port of this ...