A remote shutter is a device that allows photographers to take pictures without physically pressing the camera's shutter button. This is particularly useful for reducing camera shake, especially during long exposures or when using a tripod. Remote shutters can be wired or wireless, providing flexibility in how they are used. Many remote shutters are compatible with various camera brands, including Canon, Nikon, and Sony. They often come with features like timers and interval shooting, making them ideal for capturing time-lapse photography or self-portraits. Overall, remote shutters enhance the photography experience by offering convenience and precision.