Features:
Sensitive microphone isolates and picks up barking up to 50 feet away.
Four adjustable ultrasonic volume levels – test, low, medium, and high, with LED battery power level indicator.
Safe and humane method of bark control, suitable for all breeds and sizes of dogs
Durable and weatherproof design with a string, easy for hanging outdoors.
Powered by 9V battery. (not included)

Specifications:
Color: Black&White
Material: Plastic
Item Size: 12 * 12 * 17cm/ 4.7 * 4.7 * 6.7in
Item Weight: 240g/ 8.5oz

Package List:
1 * Bark Controller
1 * User Manual