Wide Range Effective Anti Barking DeviceThe range of sounds penetration is 480cm, covering the area indoor and outdoor. Compared with the traditional dog training device, it completely frees your hands. You can easily train the dog's behavior by turning on the knob. Extensive controls range is suitable for use to stop neighbor's dog barking at you and your family.Safe Dog Barking Control DevicesThe barking control device works by emitting sound that only dogs can hear, making the dog stop the annoying barking. No Irritating spray gas, no electric shock, no beep voice. Just work when the stop barking device sensor catches barking voice. The bark deterrent device is harmless for people and dog hearing.Rechargeable & Durable Bark StopperThe battery can continuously work for 10-15 days after 5 hours of full charge. Low battery power indication reminds you to charge in time. The sturdy ABS and IPX4 waterproof shell gives the stop barking device a longer lifetime and can be put or hanged everywhere.