A mini wireless keyboard and mouse (black) is a compact, cordless input set that typically uses a 2.4 GHz USB receiver for connection. The keyboard is ultra-slim and lightweight, making it ideal for portable or clutter-free setups, while the matching mouse offers a small, ergonomic design. They often run on AAA batteries, provide up to ~10 m of wireless range, and have quiet, low-profile keys for a comfortable typing experience.