Here. we first aim to explain practical considerations to design and implement a reconfigurable intelligent surface (RIS) in the sub-6 GHz band and then. to demonstrate its real-world performance. The wave manipulation procedure is explored with a discussion on relevant electromagnetic (EM) concepts and backgrounds. https://www.ngetikin.com/limited-buy-NHL-Dallas-Stars-Lineup-iPhone-13-Skin-p119122-great-pick/