Pet-Friendly Bark Control: This device emits a steady frequency sound that only dogs can hear, effectively deterring barking and promoting calm behavior. It operates without any irritating smell or electric shock, ensuring a harmless experience for both humans and dogs. Effective for Dogs of All Sizes: With three adjustable sensitivity and frequency levels, this bark repellent caters to dogs of various sizes. From large, naughty dogs to small, energetic ones, the device offers customized settings for effective bark prevention. Easy to Use: Featuring LED indicators, this rechargeable bark control device is simple to operate. The indicators signal different modes, including level adjustment, sound trigger, and low battery warning, ensuring ease of use for pet owners. Outdoor and Indoor Use: Designed for versatility, the device is suitable for both outdoor and indoor environments. Its IPX4 rain protection allows for outdoor hanging on trees, walls, or fence posts. Indoors, it can be placed on tables, walls, or shelves for effective control of barking, digging, and other unwanted behaviors. Bring peace and tranquility to your home with the Pet Friendly Ultrasonic Bark Control Device. Effectively manage barking behavior while maintaining a safe and comfortable environment for you and your beloved pets.