The New Preston Pittman Pure Heat Box Call is small and lightweight. Custom-made and hand-tuned it’s a great beginner call. Small with a Hot Sound, don't let the size of this box call fool you. The New Preston Pittman Pure Heat Box Call is a small package with a large sound. Not only will it do everything a full-size box call can do, but it is smaller, easier to handle, and fits in a smaller pocket. This caller is also perfect for first-time users, kids and women.