In my opinion, this remote shutter is perfect for the Nikon D5100 (certainly for others, but since I can not judge the function). It is very compact and feels very high quality. Furthermore, he does what he is and triggers the camera from every conceivable direction (so one does not necessarily have the two recipients of the camera "point"). If you hold it down longer triggers the camera off several times until you can rid him again.
To make it short: Perfect for the D5100. More not introduced you.