Product description
Item Name: Ultrasonic Dog Whistle
Material: High-quality copper + plastic
Size: length 9cm, Width 0.8cm
Included:1 x Ultrasonic Dog Whistle
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
The dog Whistle is an ultrasonic wave, it may sound small, but the dog can hear very clearly。It's easy to train dog