The wireless camera remotes is a new style multi-purpose wireless remote kit, they will make a great use when photographers work nearby with different kinds of cameras,for example canon,Nikon,Sony,Olympus. you only need to change corresponding cable.Meanwhile,it can let you easily find receiver light standing on the top whether auto-focus or shooting.You also can control more cameras with the channel switches on the transmitter and the receiver, and extra receivers if you need.