Item Type:outdoor Waterproof Ultrasonic Automatic Barking Detector Material:ABS Color:Black,Brown Feature:Durable Target Audience:Dogs Length:6.57"/16.7 cm Width(top):5.31"/13.5 cm Width(bottom):4.61"/11.7 cm Features: 1.The product looks like an alarm clock, the luxury outdoor ultrasonic barking device can be hung on a tree, anywhere in the house or in your yard, it can hang on the table or anywhere else. When the luxury outdoor ultrasonic barking alarm clock detects excessive barking, the microphone will respond to barking and activation parts. At this time, the product will send out a safe high pitch ultrasonic sound, and the dog can hear it, but no one can hear it. The dog is stimulated by the sound and will stop barking. Because ultrasound can make dogs feel sick, dogs will stop barking. 2.Designed for outdoor use, outdoor ultrasonic barking device is durable and waterproof. There are 3 files of sensitivity (effective range from 4.5,9 to 15.24 m), and a test file. A 9 volt battery is required (not included), and the battery life expectancy is 2 months. The outdoor ultrasonic barking device has a power indicator. When you leave, it can be set to "Off" to protect the battery. Dogs barking excessively will affect you and your neighbors. The outdoor ultrasonic barking device can effectively prevent dog barking and does not need a collar to receive. It is safe and effective for all breeds and sizes of dogs. 3.This product is safe for people and animals without any harmful chemicals, and does not pollute the environment. 4.Made of high and fine quality material, which is waterproof, it is durable and economic for you. 5.Effectively prevent a dog to call which affects you and your neighbor's rest. Package Include: 1 x outdoor Waterproof Ultrasonic Automatic Barking Detector Notes: 1. Please allow 1-3 cm difference due to manual measurement and 3-5 g for the difference between different colors. 2. Due to the screen difference, the color may be a little difference from what you expect, please allow it.