Product .This product is designed to look like a snail with a novel style. The ultrasonic bark stopper can be hung from a tree, anywhere in the house or in your yard, it can be hung, placed on a table at will or anywhere else. When the outdoor ultrasonic bark stopper 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. (Effective range is from 4.5,9 to 15.24 meters). Requires 9 volt battery, (not included), average battery life of 2 months.Features:*Uses ultrasonic waves to stop dogs from barking*Effective range of 50 feet*4 levels of operation*Durable and waterproof*Two-color indicator light shows if the battery is full*9 v battery - (battery not included)*Effective in stopping your dog from barking*Effective in stopping your neighbor's dog from barking*Stop your dog from barking at a certain time*Train your puppy not to bark*Stops dogs from barking while camping*Sound sensitive microphone: triggers ultrasonic sound.