The newest model by Dogtra, features a "sound recognition and filtering microprocessor" that distinguishes a dogs' barking in its surrounding ambient noises. This model is specifically talored to the small to medium dog (Fits dogs as small as 10 lbs.-Receiver Weight: 4.0 ouches) . This model, the YS300, is an intelligent no-bark collar. It is fitted with this self-activating micro processing sound analysis technology, which only responds to the barking of your dog. This collar has six different intensity levels with added level "P" which only admits a vibration, whereas levels 2-7 admit a vibration followed by stimulation. Completely waterproof with a Tri-Color LED battery life indicator and 2 hour quick charge.
"No Bark Collar" for small-medium dogs-As small as 10 pounds