TBYUM Bark Box Anti Barking Device and Neighbors Dog Silencer 50 Ft - 3 Levels Bark Box Anti Bark Device, Stop Barking Dog Devices, Ultrasonic Dog Bark Control, Bark Deterrent Outdoor

Description ►Features: 1.Durable weatherproof for indoor outdoor use 2.Use low-intensity ultrasonic, silent to humans, no harmful 3.Use ultrasonic sound to deter unwanted barking, more effective 4.Detects barks up to 50 feet with the waterproof sensitive internal microphone 5.Four levels of operation including a test mode.

Switch with 4 Levels of Operation: Test-used to verify the 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 ►How It Works？ 1.When the outdoor bark control is within range of a barking dog, microphone pick up the sound and unit is automatically activated.

2.The outdoor no bark control emits an ultrasonic sound.(ultrasonic sound can be heard by dogs but is silent to humans) 3.Started by the high-pitched sound, the dog should stop barking, it will associate its bark with this unpleasant noise.

4.When the dog stops barking the ultrasonic sound also stops.