I bought one at the local big box sporting good store for the same price. I found out that it doesn't work when you are carrying a gun, the metal affects the arrow I guess. I used it on public land when I wasn't really lost, I marked the position of my truck and went into the woods about 1/4 mile in an area that I know really well and used it to get back without using any common sense. It sent me in the wrong direction for about 200 yards before I figured out that it wasn't working right, once I set the gun down and got a few steps from it the arrow was pointing in the right direction. It's great for finding my trail camera on state land, sometimes it can take a little while to find it as I stick it off the beaten path for obvious reasons.