But dang I love my Tracker IV! It resets so fast and I know almost instantly what I've got-or at least the range it's in. I can search a whole tot lot in just a couple of minutes-I used to enter competition hunts. Bought some rechargeables for it and they work fine. Just saying this because last week I posted my arsenal and was laughed at-can't figure it out. A few days after that, I found a penny nearly 8" deep.