the bellman and flint collar is very good at finding a dog.the arrow tells you where to go and how deep,but the only flaw is whe you come to 0.9 of a meter the arrow stops telling you what direction to go,so its a guessing game after this.you could dig down and be 1 or 2 feet away from your dog.Saying that ,if you can`t find a dog at 3 feet it`s not saying much about you.also they have put the price again this year,it`s over 300 pounds