Features: 1. This Anti-Bark Training Device will trigger after more three barkings, effectively filtering out some false positives caused by environmental noise or occasionally barking. 2. Designed using sound control and extremely easy to install on a wall. 3. Comes with a rotary wall holder, allowing the device to rotate 360 degrees freely. 4. Humans will not be able hear the ultrasonic at all! NO harm to humans OR dogs, very safe to use.
Specifications: Material: Hard plastic Power Supply: DC 8.4V,500mA Power Adapter Input Voltage: AC 100V~240V Plug type: US/EU/UK/AU Plug Size: 12.6 x 7 x 4.5 cm Color: Pattern in pictures shown Note: To adjusting device sensitivity, use the slotted screwdriver from the back of the hole - turn clockwise to increase sensitivity, otherwise turn counter-clockwise to reduce sensitivity. Quantity:1 Set