Doggy Man dog whistle

-A fashionable discipline item that conveys a signal with a whistle.
-With a necklace chain.
-You can change the pitch of the sound.
-It is not a whistle that makes a beeping sound like a normal whistle.
It is not a loud sound, but it is a sound that pet dogs often hear.
-Convenient to be able to convey commands even when you are far away without making noise.