👉👉Introducing the Anti-Bark Ultrasonic Dog Bark Deterrent, your solution to pesky barking problems without breaking a sweat! Ideal for both indoor and outdoor use, our device offers a hassle-free solution to persistent barking problems. 👍2X Breakthrough UltrasonicEmitters/188% More Efficient Ends Your Daily Nightmares: This is a dual-frequency automatic ultrasonic bark control that uses two ultrasonic heads and ultrasonic frequency conversion technology, to not only increase the power and range of the ultrasonic waves, but also to increase the effectiveness of the product for dogs. 188% more effective than Bark Collars. Ifyou're dealing with neiqhbors who don't seem to care about their barking dog, or you're simply unsure of what to do, put an end to the suffering by trying our anti-bark ultrasonic dogdeterrent. It's a discreet device that can make dogs more bearable by stopping their incessant barking. ♾️Multi-Ultrasonic Heads&75 ft Maximum Effectiveness Range: With an advaced innovative design of multi-ultrasonic heads,the dog silencer boosted transmitter power,so the maximum range can up to 75 ft. This bark stopper device covers a large area, ensuring that even the most vocal furry friends get the message. Suitable for all breeds and sizes (6 months to 8 years). Say goodbye to incessant barking echoing through your neighborhood!