About Humutan Anti Barking Device
The outdoor bark control is powered by a 9-volt battery replaceable battery. It emits an ultrasonic sound when it detects barks up to 50 feet away and automatically stops barking if it hears this noise. When the dog stops, the sound also stops and the microphone and speaker are fully functional. Low range-up to 15 feet/5 meters (Suggest testing indoors). Medium range up to 30 feet/10 meters. High range - up t i 30 ft/10 m. [ Caution ] Keep at one arm length away from the human ear(s) to avoid hearing damage if a dog barks while you are setting up, mounting, or hanging the Outdoor Bark Control.