Forget About Your Daily Nightmares - while some neighbors just don't care about their yelling dog, others like you, just aren't sure what to do. So instead of suffering, why not try the Anti-Bark Ultrasonic Dog Bark Deterrent Up To 75 Feet Effective Range - Our indoor or outdoor dog bark control devices feature multiple settings and a multi-directional microphone. Mode 1: low range (25 feet) Mode 2: medium range (50 feet) Mode 3: high range (75 feet) to discourage barking from all directions. Safe and Friendly to Animals and People - This ultrasonic dog bark silencer has been tested and proven to be completely harmless to human animals and plants. It will take up to 2 weeks for the barker to "learn" what the piercing noise means. It's So Easy To Use - This small dog deterrent is very easy to mount on a wall to hang on a tree or place on a fence post near your house Plus, it's extremely easy to set up and start using making it the best electronic pet training for your dog or neighbors dog. Durable and Weatherproof - It's waterproof and durable so you can hang it outdoors in all weather and takes 1 9V battery (batteries included) making it outdoor bark control for dogs. Will you love the silence and your dog will love not being yelled at