Ultrasonic Dog Whistle

Material: High-quality copper + plastic

Size: length 9cm, Width 0.8cm

Function: Training dogs

Color: Silver + Black

Usage :

1: Unplug the whistle black shell

2: loosen the sound adjustment screw, rotate the outside adjustment lever, adjust to the best volume

3: after adjustment is completed, tighten the adjustment screw fixation

Note: The dog Whistle is an ultrasonic wave, it may sound small, but the dog can hear very clearly