Uses ultrasonic sound to deter nuisance barking
Detects barks up to 50 feet with the use of an internal microphone
4 levels of operation, including a test mode, low, medium and high mode
Two color LED for good and low battery indication
A hole in top point, easy hanging or mounting on a tree
Powered by one 9V battery (not included)
Safe and humane method of bark control for most dogs
Size: 16.5 x 15.5cm