It took me a while to figure out how to use it, because I had it turned the wrong way LOL. I am still figuring it out, but here is what I have learned so far. It is very sensitive, I am using it for my phone, and I was able to put the phone up and walk back and take a picture with the little remote.
I am still working with it, since the second I add it to my camera button it starts to take picture, and of course I did it right the first time, and now I will have to find a very comfortable spot to use it more often.
Also, I thought that it had to be connected to Bluetooth, and it doesn't. I charged it, it took about 3 minutes, put it on my phone, and it was working right away. I think I am going to get another one for my daughter, since she has a large tablet.
It is user-friendly, and worth the price, hands down.