Main Features Of The Product:1. Function: Ultrasonic + shock + sensitivity adjustment, charging + waterproof2. Tap the power on, press and hold the power off, 7-speed sensitivity adjustment, 3 lights are on at the same time is 7 gear, 1 to 6 gears are analogized.3. Function key adjustment, you can turn off one of the functions, or you can work at the same time. Product Ultrasonic Function Principle:- The first time the dog barch is triggered: At this time, the work indicator light is on automatically, 30KHZ ultrasonic output, the dog will respond, the product automatically resets the start mode, if the dog does not respond, enter the next function mode.- The second trigger dog bark: The light is on automatically, 40KHZ ultrasound, the dog responds, the product automatically locks the second mode, if the dog does not respond, go to the next function mode.- The third trigger dog bark: The light is on automatically, 50KHZ ultrasonic output, the dog responds, the product automatically locks the third mode automatically, if the dog does not respond, go to the next function mode.- The fourth trigger dog bark: The indicator light is automatically turned on, 30KHZ+40KHZ ultrasonic turns output, the dog responds, the product automatically locks the fourth mode automatically, if the dog does not respond, enter the next function mode.- The fifth trigger dog bark: The indicator light is automatically turned on, 30KHZ+50KHZ ultrasonic turns output, the product automatically locks the fifth mode, if the dog does not respond, enter the next function mode.- The sixth trigger dog bark: The indicator light is automatically turned on, 40KHZ+50KHZ ultrasonic turns output, the product automatically locks the sixth mode, if the dog does not respond, enter the next function mode.- The seventh time the dog barking is triggered: the indicator light is automatically turned on, and the 30KHZ +40KHZ+50KHZ ultrasonic turns output, the dog responds, and the product automatically locks the seventh mode automatically.- The electric shock output mode is the same as the ultrasonic output 7-time mode. The first shock intensity is the weakest, the 7th is the strongest, and the 2 functions can work at the same time. The 7-output mode is the same.- If the dog still does not respond, the product automatically stops working. After 1 minute, the working mode is automatically restarted, or you can press the switch button to restart.- This product will trigger the work more than 7 times in one minute, it will automatically stop the protection work, prevent the pet from adapting to the pet at the beginning, and prevent the dog from being hurt. Features:1. The product uses a USB charging plug and the built-in microphone triggers2. The product can be recharged3. The product uses a large capacity lithium battery for up to 60 days of long standby4. The dog belt has a maximum diameter of 35CM and a minimum of 6CM. It is suitable for all dogs.5. It is recommended to cut part of the long hair to ensure the efficiency of the product (for a small number of large dogs).6. This product is waterproof. Package Includes:1 Pcs x Anti Bark Control Collar1 Pcs x Instruction Manual1 Pcs x USB Cable1 Pcs x Shock Test Light