Super Ultrasonic Outdoor Bark Control Birdhouse Ultrasonic Training Dog Stop Barking (black);

Key Definitions:
Two-Color LED: Shows good or low battery. (red-green)
Microphone: Used to detect barking.
Sound Activated Speaker: Produces the ultrasonic sound.
Switch with 4 Levels of Operation:
Off - Used to conserve battery life test - Used to verify the microphone and speaker are functional
1---Low Range - Up to 15 feet
2---Medium Range - Up to 30 feet
3---High Range - Up to 50 feet
Battery Door: Used to enclose the Battery
How does it work ?
Uses high-frequency ultrasonic sound to disrupt nuisance barking.When the Outdoor Bark Control is within range of constant barking, an internal microphone picks up the sound and the units is activated. The Outdoor Bark Control emits an ultrasonic sound can only be heard by the dog.Startled by the high-pitched sound,the dog should stop barking, as it will associate its bark with this unpleasant noise. The Outdoor Bark Control has 4 setting including 3 Sensitive Levels and a Test Mode and is effective up to 50 feet .
Possible Use:
Stopping your barking dog indoors
Stopping your neighbors' barking dog
Training the behavior of dogs or cats
Detering barking dogs on camping trips
Use it：
Hanging or mounting on a tree,wall or fence post. Place the Outdoor Bark Control within range of the dog with the unit switched to Low, Medium or High. Most dogs will understand very quickly that the Outdoor Bark Control is disrupting their urge to bark and will relax and stop barking. You should notice a reduction in the dog barking within the first two weeks after usage.
Notice:
Please note this product may not work on deaf or hearing-impaired dogs.