LED backlight is useful for both emphasizing some elements (e.g. buttons, controls) and giving interesting appearance to a device. The advantages of such solution are most noticeable during a night session at the computer, when the striking illumination facilitates the use of a device, while giving it an interesting look.
USB nano receiver for remote connection of RF 2.4 Ghz device to your PC has a compact design, protruding from a computer only by 5 mm, so that the USB port does not wear out, and the receiver is not damaged. A solution especially useful for mobile use in notebooks.