Colour Name:BLACK Features: Uses ultrasonic technology to stop barks, recommended level for indoor use is level 1 if need. 3 adjustable ultrasonic volume levels - low, medium and high, with LED battery power level indicator. Level 0: ON/OFF Level 1: 15KHZ, up to 15 feet (recommended indoors) Level 2: 20KHZ, 30 feet high Level 3: 35KHZ, 50 feet high The device uses low-intensity ultrasonic, is silent to humans and not harmful. Safe for small, medium, large dogs. Effective Range: HOW IT WORKS This device is automatically activated by the sound of barking. When the device is within the range of a barking dog, the microphone will isolate and pick up the barking to emit an ultrasonic sound to silence the dog. HOW TO TEST IT 1. Set the knob to "1, 2 or 3". 2. Place the item at arm's length from you. 3. Whistle to the microphone of the item loudly. If the LED is a stable red color and you can hear the beep, the item is working properly. Package Includes: 1 X Ultrasonic bark controller (9V battery not included) 1 X User manual
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