The Hunt Tester utilizes an Acme 635 whistle that already produces a strong, piercing note, then magnifies it with a unique 3" long and 1 1/2" wide megaphone that is very light, yet highly durable. When you are working in demanding conditions or extra long distance and it is imperative that your dog hears your whistle commands, yet need a compact whistle when working in the field, the Hunt Tester is the answer. Lanyard O-ring included.

Available in black, grey, blue, and clear.