Note: This USB receiver is engineered to work seamlessly with 2.4G wireless keyboard and mouse sets, each featuring 104 keys, from a variety of brands, including KNOWSQT, UBOTIE, SADES, LETTON, MOFII and SkyGive.
The new USB rematch method: Step 1: Plug the USB receiver into the computer. Step 2: Reinstall the batteries of the keyboard and mouse (unplug and reinstall the batteries).