You have figured it out, Citronella Barking Collars are the safest and most effective way to prevent your dog from barking in vain at family members or strangers. A Citronella Barking Collar works by using a clean and simple pressure gas scented with citron or scentless (new option). Here is exactly and more specifically how it works: A small nylon dog collar is clipped around the barker dog's neck.  The small blue nylon collar holds a tiny 2-3 oz rectangular box of 2" x 1.5" x 1.5" approximately in size. The electronic device contains a microphone that will detect the dog's barking sound. Next to the mic you see a small orifice that turns out to be the exit point for the solenoid controlled Citronella gas. A small 9 volt battery inside the Citronella Barking Collar is powering up the microphone and the solenoid valve. If a barking sound is heard from your dog, over a set level (default set level you can't control), the microphone's preset limit will trigger the solenoid valve on the Citronella Barking Collar to let out some air spray under the dog's shin.  This Gentle Spray (this is the actually Anti bark collar's Brand name) distract the dog or bugs it to heck and it stops from barking immediately. It's very interested how/why that works. You should see it, the dog actually backs up and puts on a what was that!! look on it's little face. After a while (less than 5 minutes) with the no barkage dog colar on, you'll notice the puppy or dog has gone quite. It may just growl a little but will not bark. It's like if the dog has figured out the noise trigger limit on the new bark control tool around its neck. This collar is a nice harmless way for controlling unwanted dog barking. The Citronella Barking Collar are 2x more effective at stopping dog barks as the old fashion electroshock collars. %94 effective to be more precise. The Gentle Spray no bark collar kits come with a battery and a citronella scented bottle of gas. The scent gas bottle will last you for ever just about. This bottle does not hang off the dog's collar, you only use it to recharge the Citronella Barking Collar when it's small gas reservoir goes empty from time to time. Spare batteries are what you need lots of. Just like old fashion electroshock no bark dog collars must eat energy like crazy, these Gentle Spray use you the battery fairly fast (mostly for it is a small battery). I feel a few batteries here and there are a small price to pay to have a nicely behaved bark free dog. Note: Most dogs won't bark at all even though the battery is dead. That's as long as they are trained to the collar and the no bark device stays around their necks. It must be the FEAR FACTOR... | 
