Portable Pet Training Adjustable Ultrasonic Sound Key Chain Metal Dog Whistle

1) A brand-new, unused, unopened, undamaged item

2) Dog whistle, which is used for training and obedience .Sound adjustment is made by releasing the locking nut and turning the screw. This level of pitch is recommended practically when training

3) Used in the training of dogs

4) With a key ring loop, easy to carry

5) Made of metal

6) Size:100x8mm