I got a surprise present from my wife last night.

So this is the first time I get something, and I don't know what to do with it and I hope it isn't too weird, but I just want to learn how to use it right. <br><br>It came in a little box with some lubricant. I don't know what to do with it and what are the best ways to use it. <br><br>The one she gave me is a big, roundish toy made of silicone, with 2 big arms and 2 little arms at the end. There is a long stem connected to it, with a plastic battery pack at the end. I assume it is electric and I just have to put in batteries, but how do I know how much batteries to put in? <br><br>It has different settings as far as I can see and I don't want to hurt myself trying to figure it out. <br><br>Can anyone show me how to use it?