Product Features:

9V Battery operation (battery not included)
Durable and weatherproof
Sound Activated Speaker: Produces the ultrasonic sound
Specification:
Microphone: used to detect barking
Sound activated speaker: produces the ultrasonic sound

Ultrasonic sound projects in a cone shape of about 180 degrees in front of the speaker
Durable and waterproof for outdoor use
4 levels of operation including a test mode.
Switch with 4 levels of operation:
OFF-used to conserve battery life
Test-used to verifythe 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
What's in the box
Outdoor Bark Control * 1
User's Manual * 1
About the Outdoor Ultrasonic Bark Deterrent
Your dog loves your yard. She enjoys playing fetch,chasing the squirrels back into the trees, and racing her shadow to and from your home. Yet, she barks at everything outside and it is driving you crazy. And, when she starts barking, it gets all the neighbors dogs barking. Thus, the endless barking cycle begins.You and everyone in the neighborhood are losing sleep from the pet conversations all night long. You need a bark control solution, and the Outdoor Bark Control is just the one for you!
Note:this product might not work on 10% of dogs, specifically dogs whose ears may be covered or down facing,he may not react to the outdoor ultrasonic bark control .

• PORTABLE: small and light,you can hang it on the tree or anywhere in outdoor.9V Battery operation - (battery not included)
• EFFECTIVE: With a Sound Activated Speaker to produce the ultrasonic + an Microphone,it can detect all dog's bark within 50 feet (please note this product may not work on deaf or hearing impaired dogs)
• DURABLE and WATERPROOF: with firm sharp ,it is not easy for your pet to destroy it
• SAFE: human can't hear the ultrasonic sound and it will associate the bark with unpleasant noise,when the dog stops barking the ultrasonic also stops
• ATTENTION:The bark controller is not very suitable for the special dogs which the ears' been covered,besides,not to use the device for a long time,it will Reduce the effect.

PORTABLE: small and light,you can hang it on the tree or anywhere in outdoor.9V Battery operation - (battery not included)AnnaEye