Features: -There are 3 modes in total (beep mode, vibration mode, static shock mode), 7 levels of sensitivity adjustment, press lightly for 0.5 seconds to turn on, and long press to turn off.-Built-in 280mAh Li-ion battery, 1 hour charge and 14 days of standby time.-It weighs only 3.2 ounces, which will not burden your neck, and the collar tightness can be freely adjusted to ensure optimal comfort.-It has a wide applicability and is suitable for dogs from 15-150 pounds.-With smart detection, it will only activate when the dog barks.Ultrasonic function principle:*The first trigger, the indicator light automatically lights up, 19kHz ultrasonic output, the dog will react, if the dog does not react, enter the next stage;*The second trigger, the indicator li.
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