I like the simple yes, no, and maybe one, but I don't care what I use, the Pendulum NEVER works for me. I have tried all kinds. Expensive ones, cheap ones, and none of them work for me. You would think yes would be up and down, but no, I ask what is what and yes can be side by side and no up and down. Don't get it. Even carry it in my purse so my vibes are with, but nothing. Can anyone answer why it never works for me??? THX.