Although this is a generic product with only 2 buttons, it works perfectly for my needs with my Sony a55 digital camera. I don't have to concern myself with the camera's timer, and am able to take still photos, including long distance shots, without any wobbling. It was extremely useful for the egg shots I had to take for lighting/shadows lesson in my photography class. And for under $10, I may have to buy another one or 2 for future use! Thanks, Zeikos!