Dogs are our friends, but do you feel helpless and annoyed when the dog barks uncontrollably?\r\nWhen you go to bed at night, your dog disturbs your neighbor’s sleep. Do you feel sorry?\r\nYou must be very reluctant to train your dog to be quiet with cruel electric shocks.\r\nIt\'s time to try our ultrasonic dog bark control deterrent and gently bid farewell to those endless barks.\r\nSize: 6.1x5.5x6.1 inches (1 per pack)\r\n[Package includes] New outdoor barking control (not including battery) and manual\r\nLevel 3 operation mode:\r\n-Low range: up to 15 feet\r\n-Middle distance: up to 30 feet\r\n-High range: up to 50 feet\r\n[Features]\r\n1. This barking control device is designed to provide pet owners with a more professional method of training pets.\r\n2. It is powered by a 9 volt battery replaceable battery plugged into the device-(battery not included). With the help of a built-in microphone that can pick up dog barks, it will automatically activate when the outdoor barking control detects a dog barking 50 feet away. Then it will emit ultrasound.\r\n3. Four adjustable ultrasonic volume levels (including a test mode). Test-Used to verify that the microphone and speaker are working properly. Low range-up to 15 feet/5 meters (recommended to test indoors). The middle distance can reach 30 feet/10 meters. High range up to 50 feet/15 meters\r\n4. The new outdoor bark control device adopts a beautiful and well-designed birdhouse device.\r\n5. Durable and weatherproof for outdoor use\r\n6. LED light flashes to indicate low battery indicator\r\n[Caution] When you set up, install or hang a new outdoor barking control device, if the dog starts to bark, please keep an arm away from the human ear to avoid hearing damage.\r\n[Note] If the dog is deaf or hearing impaired, he may not respond to barking control outdoors