Main Functions Of The Product:1. Function: electric shock + ultrasonic + sound warning + sensitivity adjustment + charging2. All functions of the product are digital display gears3. The product uses a USB charging plug and the built-in microphone triggers4. Electric shock, vibration 8 gear adjustment (0~7) is adjusted to 0. This function is turned off, and the sensitivity of 7 gears (1~7) is convenient for humanized customers.5. Battery power digital 7-speed display.6. The product can be recharged7. The product uses a large capacity lithium battery for up to 60 days of long standby8. The dog belt diameter can reach 35CM, which can reach 6CM, which is basically applicable to all dogs.9. It is recommended to cut part of the long hair to ensure the efficiency of the product (for a small number of large dogs).10. This product can be waterproof, no wind and heavy rain, please feel free to use!11. This product will trigger the work more than 7 times in one minute, it will stop the protection work, and will restart the work after one minute to prevent the pet from adapting at the beginning. Features:1. Stop the dog barking by increasing the ultrasonic humanity.2. Ultrasonic emission function can gently affect the dog. The harsh beep sounds to stimulate the dog to stop calling.3. Some dogs take effect for 7-14 days, and most dogs take 4-6 weeks to have an effect. A small number of dog breeds take longer to get used to. It can't be changed. It can only be replaced by another habit.4. Some dogs are more stubborn, and the effect may not be obvious. Use the electric shock weak function. Package Includes:1 Pcs x Anti Bark Control Collar1 Pcs x Instruction Manual1 Pcs x USB Cable1 Pcs x Shock Test Light