1. Function: ultrasonic + electric shock + sensitivity adjustment
2. Press for 0.5 seconds to turn on, long press to turn off, 7 levels of sensitivity adjustment, 3 indicator lights at the same time is 7 levels, 1 to 6 levels and so on.
3. Function key adjustment, one of the functions can be turned off, or it can work at the same time.
4. Using a large-capacity 600mAh lithium battery can reach 60 days of ultra-long standby time
5. The diameter of the collar is as large as 35CM and as small as 6CM, suitable for all dogs
6. Rechargeable and waterproof

Instructions:
1. When the barking sound is triggered for the first time, the working indicator light will automatically turn on, and the 19KHZ ultrasonic output will make the dog respond, and the product will automatically reset to the start mode. If the dog does not respond, it will enter the next function mode.
2. Trigger the barking sound for the second time, the indicator light will automatically turn on, and the 20KHZ ultrasonic wave will respond to the dog, and the product will automatically lock the second mode. If the dog does not respond, it will enter the next function mode.
3. Trigger the barking sound for the third time, the indicator light will turn on automatically, 21KHZ ultrasonic output, and the dog responds, the product will automatically lock the third mode, if the dog does not respond, enter the next function mode.
4. Trigger the barking sound for the fourth time, the finger lights will automatically turn on, and the 19KHZ+20KHZ ultrasonic waves will output in turn. If the dog responds, the product will automatically lock the fourth mode. If the dog does not respond, it will enter the next function mode.
5. Trigger the barking sound for the fifth time, the indicator light will automatically turn on when it is on, 20KHZ+21KHZ ultrasonic waves will be output in turn, and the product will automatically lock the fifth mode. If the dog does not respond, it will enter the next function mode.
6. The dog barking sound is triggered for the sixth time, the finger light is on and the light is turned on automatically, 19KHZ+21KHZ ultrasonic waves are output in turn, and the product automatically locks the sixth mode. If the dog does not respond, enter the next function mode.
7. The dog barking sound is triggered for the seventh time, the finger light turns on automatically, 19KHZ + 20KHZ+21KHZ ultrasonic waves are output in turn, the dog responds, and the product automatically locks the seventh mode,
8. The electric shock output mode is the same as the ultrasonic output 7 times mode, the first electric shock intensity is the weakest, and the 7th time is the strongest. The two functions can also work at the same time, and the 7 times output mode is the same.
9. If the dog still does not respond, the product will automatically stop working. After 1 minute, the working mode will be automatically restarted, or you can press the switch button to restart.
10. This product will automatically stop working if it is triggered continuously for more than 7 times within one minute, so as to prevent pets from getting used to it at the beginning, and to prevent damage to dogs.