Features:-It adopts a dog barking sensor system, which can accurately detect dog barking, safe for pets, and then automatically emits ultrasonic waves to stop the dog from barking.-With 3 different frequencies, the 15-30kHz frequency can prevent large dogs from barking at a distance of 15m, the 20kHz frequency can prevent medium-sized and docile dogs from barking at a distance of 10m, and the 30kHz frequency can prevent small dogs from barking at a distance of 5m.-With a wide effective range of 33 feet, it can be easily placed on tables, shelves, windowsills, etc., hung on trees, walls, fence posts, etc.-Equipped with a 1800mAh high-performance battery, it only takes 2 hours to fully charge and can be in standby mode for up to 30 days.-With LED light to show.
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