2.4GHz Wireless TechnologyPlug and Play, Free Simply Connection, No need to install any software, no delays or drop the line. 2.4GHz signal delivers up to a range of 33 feet(10m) connection that allows you to work with your PC from a distance. One 2-In-1 USB receiver connects both the keyboard and mouse wireless,high speed rate of return allows the combo to ensure their stable and smooth transmission.(The keyboard or mouse can also be used separately). Retro Floating Round KeycapsThe typewriter style wireless keyboard with High Profile loud 99 Retro Round keycaps can release your wrist pressure,typing smoothly,gives you the most comfortable typing experience. All circle buttons can be disassembled, put in water to clean. The colorful cute wireless keyboard and mouse are perfect for expressing your unique personality. It is a must-have for back to school. Wide CompatibleThe baihuafru wireless keyboard with round keycaps compatible with operating systems(USB 2.0 port),