K-718A Remote Pet Training Spray Bark Control Collar without Any Shock

Pros: Instructions are in English and clear.
3 levels of sensitivity.
makes a beep when fires, and if fires several times in a row, makes an extra beep so owner will be alert.
Easy to refill the air container.
Easy and fast recharge.
Quite strong.
Big enough refill can.

Cons: Comes with collar suitable only for big dogs. With tweaks was able to put it on small dogs collar.
The screw that holds the air canister in the mechanism fell off quickly - so replaced with regular small screw.
The plastic hooks that keep the mechanism on the collar brake easily.

Other: It helps. I have 2 small barking dogs, and I purchased one collar to try, on one the effect was immediate, on the other it took some time but it works. It also depends on the dog's character of course.

Pros: Does the job without hurting your pet. Stops boredom barking. Our dog used bark incessantly at birds, clouds, the moon, nothing at all ... She still barks at potential threats, but never more than 2 or 3 times. The barking doesn't turn into a half hour or trying to get her to shut up.

Cons: The English in the instruction manual is unintelligible, but the product is simple enough to figure out. The refill process is fraught with difficulty, and make the cannisters susceptible to breaking.

Other: Worth buying, but handle carefully.

Pros: works - dog stopped barking almost immediately and now doesn't bark also when the collar is not on her. all the neighborhood thanks us!

Cons: stopped working after 2 months. switching on and off CANNOT be done with the magnet that comes with it.

Other: buy it, but dont be disappointed when it stops working... I am about to buy another...