The Sony PlayStation Portable, commonly known as the PSP, is a handheld gaming console released by Sony in 2004. It features a 4.3-inch LCD screen and supports a variety of media formats, including games, music, and videos. The PSP was designed to provide a portable gaming experience with high-quality graphics and sound. The console uses proprietary UMD (Universal Media Disc) for games and movies, allowing users to enjoy a wide range of titles. Over its lifespan, the PSP sold over 80 million units worldwide, making it one of the most successful handheld consoles in gaming history.