Feature:
100% Brand new
Color: Silver
Material: metal
Length: 5.5cm(approx.)
Key ring loop included

Package inclueded:
1 X Dog Training UltraSonic Whistle

Note: The dog whistle\'sound includs 2 parts，Part 1: the Ultrasonic. Human\'s ear can not hear it，but dog can hear it. Part 2: These light sound can be heard by human， which help owner sound a long or short whistle to train their
Adjustable pitch， simply tighten or loosen the screw to work out your dogs frequency
It should be noted that this whistle is audible to the human ear， essential for gauging its efficiency.