90mm Pet Dog Training Adjustable Whistle Pitch UltraSonic Sound Black

90mm Pet Dog Training Adjustable Whistle Pitch UltraSonic Sound Black
Features:
Designed for dog training, the frequency produced isn't of effect on person, but very useful for dogs, it will sit up, come here, eat, sit down etc…
A plastic sleeve protects the adjustment area
Great for recall over long distances
Key ring loop included
Specification:
Material: Metal & Plastic
Length: 90mm(3.54")
Weight: 14g
Package Included:
1 X Dog Training Whistle
Note:
1.Due to the light and screen difference, the item's color may be slightly different from the pictures. 
Please understand. Make sure you don't mind before you bid.
2. Please allow 1-5mm differences due to manual measurement.