Abstract: A device for deterring a dog from barking includes a sensor for detecting a bark from a dog and for generating an activation signal upon detection of the bark and an integral housing. The integral housing includes a reservoir for storing a bark deterrent substance, a bobbin integrated with the reservoir, a wall separating the bobbin from the reservoir, and an aperture extending through the wall for allowing fluid communication between the reservoir and the bobbin. The device further includes a spray mechanism for delivery of a dose of the bark deterrent substance to the dog upon receipt of the activation signal from the sensor.