Zeyaa Ultrasonic Adjustable Frequencies Training Dogs Review

👍【 Ultrasonic Bark Control Whistle】Ultrasonic dog whistle can help to stop your dog’s barking attacking without any damage to their hearing. ultrasound will not interfere with human, also no hurt to dog's hearing. 【Safe Silent Dog Whistle】Made of harmless high quality steel materials for long lasting. TIPS: the whistle has two Frequency tones, ultrasound mode and auditable mode. Ultrasound mode can be heared by dogs, but human not. auditable mode can be heared by both dogs and human.choose the correct way to train. 👍【Easy to use】With adjustable frequency, dog whistle allows you to train your dog to stop barking, attacking, long distance recall, sit, come, lay down, stay and so on through ultrasonic of the whistle. 👍 【Anti-loss Dog Whistle】the dog whistle comes with new dual anti loss features on account of the special lock nut and free lanyard.You can take this silent dog whistle to anywhere without worrying the lost. 👍【100% Refund Guarantee! 】Zeyaa dog whistle offers lifetime money back guarantee! If you are not 100% satisfied with this ultrasonic whistle, please contact us directly .We will make a replacement or full refund to you.