Dog Whistle Sound Whistle for Training Supersonic Obedience Sound Ultrasonic Pet Dog Dog Whistles

Label:Yes Function: Training dogs Material: High-quality copper + plastic Color: Silver + Black Item Name: Ultrasonic Dog Whistle Included:1 x Ultrasonic Dog Whistle Size: length 9cm, Width 0.8cm

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。It's easy to train dog