Mini projectors are compact devices that can display images and videos on a screen or wall. They are smaller than traditional projectors, making them portable and easy to use in various settings, such as home theaters, classrooms, or outdoor events. Many mini projectors connect to devices like smartphones, laptops, or tablets via HDMI or wireless connections. These projectors often come with built-in speakers and rechargeable batteries, allowing for a convenient viewing experience without needing additional equipment. While they may not offer the same brightness or resolution as larger projectors, mini projectors are ideal for casual use and on-the-go entertainment.