【 Dog Barking Control Device for all sizes and breeds of dogs 】This ultrasonic dog barking deterrent with 3 different sensitivities and a 25kHz sonic that is only heard by dogs and calms all dogs down. 【 Pet-Friendly Automatic Stop Dog Barking】With this automatic sonic dog anti-barking device, you can create a silent environment for families and neighbors to enjoy a good sleep at night. 【 Extantsive effective Range 】The highest level can send the effective sonic to stop dogs around 50ft barking. 【 Waterproof and Long standby time】 Our anti-barking device with a lanyard and house-shaped design, is easy to hang on the trees, walls, or fence posts. 【 Easy to use 】The anti-barking device with a sensitivity adjustable button for selecting suitable levels to stop different dogs from barking. " T " mode for testing the speaker and microphone. " 1 " mode is low sensitivity and short-range, perfect for using a small home. " 2 " mode is medium levels for using in big houses and outdoor, and " 3 " mode is the highest level for using outdoor to stop neighbors dog barking. VANZO Ultrasonic Automatic Anti Barking Device can keep your dog and your neighbor’s dog from barking How the device works: 1. When the outdoor bark control is within range of a barking dog, the microphone picks up the sound, and the unit is automatically activated. 2. The bark control device emits an ultrasonic sound. (ultrasonic sound can be heard by dogs but is silent to humans). 3. Startled by the high-pitched sound, the dog should stop barking, it will associate its bark with this unpleasant noise. 4. When the dog stops barking the ultrasonic sound also stops. Instruction: T - Verify the microphone and speaker are functional 1 - Low Range(Up to 15 feet) 2 - Medium Range(Up to 30 feet) 3 - High Range(Up to 50 feet) LED Indicator: Green= anti-barking device standby flashes 1 time per 5 seconds Red= catching the barking voice and working Test outdoor barking control: 1. Set the mode switch to TEST. 2. Hold the barking guard with the indicator light facing you. The ultrasonic anti-bark device should maintain arms length with your mouth. 3. In order to trigger the work of the anti-barking controller, say "Woof" loudly into the microphone. Power: 1 x 9V battery (not included) Note: The adaptability of each dog is different. The barking will not stop at first, so please allow up to 2 weeks for training. Track Page Views WithAuctiva's Counter