Product Model: Ultrasonic Bark Control K4Product Description:Introducing our innovative Ultrasonic Bark Control K4, designed to resemble a sleek alarm clock. This deluxe outdoor device can be easily hung on a tree, placed anywhere inside your house, or simply positioned in your yard. The Ultrasonic Bark Control K4 features a built-in microphone that detects excessive barking and activates its components. Upon detection, the device emits a safe high-pitched ultrasonic sound that is audible to dogs but not to humans. The discomfort caused by the sound stimulates the dog to cease barking.Specially crafted for outdoor use, the Outdoor Ultrasonic Bark Control K4 is durable and waterproof. It offers three sensitivity levels (effective range between 4.5 and 15.24 meters) as well as a test mode. The device includes a power indicator and can be set to "Off" when not in use to preserve battery life.