Wired remote control with timer and LCD display is designed for the Canon EOS 10D 20D 30D 40D 50D D30 1Ds 1D 5D 7D, similar to RS-80N3 (Electronics)
IT MANAGES frankly amazon (I say no to the pub) but arrived two days before as the last item ordered regarding the product PERFECTLY COMPATIBLE with the 7D tried quickly after receipt in short, to buy even if there is no on / off button