Feature: 100% New And High Quality ! Type:Ultrasonic Dog Anti Barking Device Material:ABS Size:4.9 x 4.9 x 5.5 inch Power:1 x 9V battery(not included) Distance:activated at 15, 30 or 50 feet The use of ultrasonic to stop barking Durable and waterproof Stop nuisance barking with the Ultrasonic Device in Newest Birdhouse Shape. This product aims to solve excessive, noisy dog barking by emitting an ultrasonic sound to silence the dog. The ultrasonic frequency is not harmful to pets and completely inaudible to human ears. The sensitive microphone isolates and picks up barking up to 50 feet away to solve the disturbing barking problem. Perfect solution for peace and quiet from loud pets. Designed for easy hanging/ mounting on a tree, wall or fence post with a lanyard(included in the package) to keep your own dog or your neighbors' dog from barking. Safe and effective for most sizes and breeds of dogs, if the dog is deaf or hearing impaired, he may not react to this bark control. Usage: Stop your barking dog Stop your neighbors barking dog Train puppies not to bark Deter barking dogs on camping trips when you are on the way Four range levels: Test:Verify the microphone and speaker are functional Low:Range-up to 15 feet Medium:Range-up to 30 feet High:Range-up to 50 feet Notice: This dog bark control doesn't have palpable effect, you need to keep it open for several days, the situation will improve. Due to the different monitor and light effect,the actual color maybe a slight different from the picture color. Please allow 1-2cm differs due to manual measurement .includes:1 x Dog Anti Barking Device