Barking with My Dog

I’ve tried everything to get my dog to stop barking excessively, but nothing seems to work. I then decided to try using some sensor tech to solve the problem. The device you see strapped to my dog’s neck is an anti-bark collar. When she barks, a sensor detects the sound and releases a citronella spray that is “supposed” to train her not to bark. However, my dog seems to be immune from the spray, which is bad news for my neighbors and my nerves.