WARDBES Dog Barking Control Devices, Stop Training Tool, 3 Levels Ultrasonic Deterrent, Anti Device, Rechargeable Bark Stopper for Pets, Indoor & Outdoor Use

【Quiet Operation】It only works when the dog is barking, which can provide a quiet sleeping environment for your family and neighbors; the ultrasonic wave of the anti-bark device harmless to pets, completely inaudible to human ears. When the bark stopper handles the dog's barking, it can be assisted by training to gradually reduce the barking. 【10M Deterrent Range】Ultrasonic anti barking device with 3 distance level ranges up to 10M. Simply put this dog bark control machine in any indoor or outdoor setting where excessive barking occurs. The unit will automatically detect dog’s barking sounds and emit a safe ultrasonic sound that only dogs can hear to deter and train your or yours neighboor’s dog to stop barking. 【Using Outdoor and Indoor】 The stop dog barking device with the hook is suitable for use outdoors, and easy to hang on trees, walls, or fence posts. It can also save space or be set on a desk, wall, and shelf higher than 1.5m indoors, which can make it more effective to avoid barking, digging, fighting, etc. Our anti barking device can be set outdoor to stop homeless dog barking. 【Effective on All Size Dogs】The ultrasonic dog barking control device with 3 adjustable sensitivity and frequency levels（10-30KHz for large, naughty dogs; 10-20KHz for docile dogs; 25KHz for small dogs) helps you to choose the different waves to deal with different dogs barking easily. 【Warm Tips】Anti Barking Device is not applicable to the following situations: aggressive dogs, noisy surroundings, hearing impaired dogs, more dogs together, dogs under 6 months or over 8 years. If you find that the dog does not meet the above conditions, Please do not return the Anti barking Device immediately, as the dog will need time to get used to the dog barking control devices, for up to two weeks.