Product NameOutdoor ultrasonic bark stopperProduct ModelCSB12Product MaterialABS plasticProduct color]: Black / coffee colorProduct PackagingNeutral color boxProduct Certificate: CE / RoHS FCCSingle weight: 355gDesigned to look like a house, the Deluxe Outdoor Ultrasonic Stop Barker can be hung from a tree, anywhere in the house or in your yard, and it can be hung, placed on a table at will or anywhere else. When the Ultrasonic Bark Stop alarm clock detects excessive barking, the microphone will sense the bark and activate the component. The product will then emit a safe, high-pitched ultrasonic sound that the dog can hear, but not the human. The dog will be stimulated by the sound and will stop barking.Designed for outdoor use, the Outdoor Ultrasonic Stop Barker is durable and waterproof.There are 3 levels of sensitivity: 1 low effective distance 4.5 meters, 2 medium 9 meters, 3 high 15.24 meters, plus a test gear T. Use 9 volt battery (need to buy separately), the average battery life of 2 months. The outdoor ultrasonic stop barker has a power indicator that can be set to "Off" to protect the battery when you are away.Excessive dog barking can be a problem for you and your neighbors. The Outdoor Ultrasonic Bark Stop is effective in stopping dogs from barking and does not require a receiving collar. Safe and effective for all breeds and sizes of dogs.