nearly inaudible whistle
Verified Buyer Reviewed by northern gal from northern Minnesota on Wednesday, September 30, 2015
I had a dog toy whistler ball from Duluth Trading Co. It had a noticeable whistle and was much larger. My labrador dog loved it until it was lost, sinking in the swamp. This Chuckit ball is small, tennis ball size, and maybe the whistle is more audible to a dog's hearing (?).