Supercalifragilisticexpialidocious is a great word from Mary Poppins, and one that is apt for the device we are looking at today. The Kingston MobileLite Wireless is a compact and wireless external card reader which really has a ton of features.
Many IT products have so many features that it's not even possible to explain what they do in a couple of sentences. NAS devices are a great example of this, they will basically do anything for you except for taking the trash out. And the same can be said for this little device from Kingston. But let's start with the basics, you use the included USB cable to connect it to a computer, and then you have yourself a (large) card reader.
The card reader is compatible with SD, SDHC and SDXC cards, and with the included adapter you can also use MicroSD cards. It also has a USB 2.0 port so you don't lose one of your ports when you connect it to a PC.
While the Kingston MobileLite is pretty big, there isn't a CompactFlash slot, but you could add one of those via the USB port. It weighs just under 100 grams and measures 12.5x6x16.7 cm.