Sell LANFY Black Ultrasonic Ultrasonic Pet Dog Dog Whistles New Two-tone Dog Whistle Supersonic Obedience Sound Whistle for Training Sound/Multicolor best price

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