In our opinion, citronella spray and static shock collars are the most effective ways to train a dog to stop barking. If you are concerned that a shock collar might be too much for your dog, try using a citronella spray collar instead, because the disadvantages of an ultrasonic dog collar far outweigh any perceived advantages they may have.
The sonic Hush Puppy collar for quieting your barking dog using sound
Ultrasonic dog training collars are extremely easy to use. In most cases, only a hand held remote unit is needed. To use the device, simply point the remote at the pet and push the button for either the positive or negative tone. As with all training devices, it's important to use the positive or negative tone at the exact moment that the dog is exhibiting the desired or undesired behavior, so that he or she will be able to mentally connect his or her actions with the consequences. It's also important to use the device consistently, which will make it easier for your dog to learn. It's usually more effective to work on teaching one obedience command or eliminating one undesirable behavior at a time, in order to avoid overwhelming and confusing your pet.
PetSafe Sonic Bark Collar PUSB-300 - Dog Bark Collar
Keep your dog or cat off the couch, away from the kitchen table or out of an entire room with our new Sound Barrier Indoor Sonic Fence. This indoor electronic pet barrier for dogs and cats that uses audible sound, not shock to keep your pet out of restricted areas. Receiver unit may be placed on table tops, by doors, beds, couches, trash cans or anywhere that is "off limits" to pets. The lightweight electronic pet collar sends an ultrasonic signal that triggers a loud sonic blast at the receiver unit to make your pet scat. Dogs and cats are easily trained to stay away. This ultrasonic system is superior to cheaper infrared devices because it allows people to come and go without triggering the alarm. The sonic alarm is triggered only by your pet's individual electronic transmitting collar. Range is fully adjustable from 1 ft. up to 35 ft. System includes one receiver module and one pet collar transmitter. Transmitter comes with lithium battery. Standard 9-Volt battery required for receiver (not included). Add an unlimited number of extra collars (High Tech Pet model MS-2) to control multiple pets. Add extra receivers (High Tech Pet model SBR-1) to protect multiple areas. Collar also operates our Power Pet fully automatic pet doors. Receiver is also operated by the Humane Contain model RX-10 electronic fence collar.
Sonic Calming Dog Collar - Solutions for Home, Yard, Garden & Auto