Redstone Repeaters are components in the game Minecraft that help control the flow of Redstone signals. They can receive a signal from a source, like a Redstone Torch or a Lever, and then transmit it to another component. Repeaters can also extend the range of a signal, allowing it to travel further than the usual 15 blocks. In addition to extending signals, Redstone Repeaters can introduce a delay in the signal transmission. This delay can be adjusted by right-clicking the repeater, which changes its setting from 1 to 4 ticks. This feature is useful for creating complex mechanisms and timing circuits in Minecraft.