1. Introduction
The KUJOBUY Ultrasonic Anti Dog Barking Pet Trainer is a versatile, handheld device designed to assist in pet training and behavior management. It utilizes gentle ultrasonic waves to deter excessive barking and correct other unwanted behaviors in dogs, promoting a more peaceful environment. Equipped with an integrated LED light, it also serves as a convenient tool for nighttime visibility or as a flashlight.

Figure 1.1: The KUJOBUY Ultrasonic Anti Dog Barking Pet Trainer device.
2. Product Overview and Components
This device features a user-friendly design with clearly marked controls for various functions. Understanding each component is essential for proper operation.

Figure 2.1: Key components of the device, including Ultrasonic emitters, LED lights, Infrared Ray, Light Switch, and mode selector for Training and Chasing Away Dogs.

Figure 2.2: Detailed view of the ON/OFF switch, Light button, and the three-position slide switch for 'Train' (I) and 'Chaser' (II) modes.
Controls and Indicators:
- ON Button: Press to activate the selected function.
- Light Button: Activates the LED flashlight function.
- Mode Selector Switch:
- Position I (Train): Emits a gentle ultrasonic sound for basic training and behavior correction.
- Position II (Chaser): Emits a stronger ultrasonic sound, primarily for deterring aggressive dogs or breaking up dog fights.
- LED Lights: Located at the front, used for illumination and visual indication.
- Ultrasonic Emitters: Located at the front, these generate the ultrasonic sound waves.
3. Key Features
The KUJOBUY Pet Trainer offers several features designed for effective and humane pet management:
- Effective Bark Control: Utilizes gentle ultrasonic waves to deter excessive barking, promoting a peaceful environment.
- Dual Functionality with LED Light: Functions as an anti-bark tool and provides an LED light for training and nighttime visibility.
- Safe and Humane Training Tool: Emits ultrasonic sound that is harmless to dogs, providing a humane way to manage and train behavior.
- Portable and User-Friendly Design: Compact and handheld for easy carrying during walks or outings.
- Versatile Application: Suitable for various training scenarios beyond bark control, assisting in correcting other unwanted behaviors effectively.

Figure 3.1: The device serves as a dual-purpose tool for training and defense, helping to stop dog fights, protect yourself, aid in pet training, and drive away unwanted dogs.

Figure 3.2: The device is designed to be harmless to pets while effectively assisting in their training.
4. Setup
4.1 Battery Installation
The device requires a 9V alkaline battery (not included). To install the battery:
- Locate the battery compartment cover on the back or bottom of the device.
- Slide or unclip the cover to open the compartment.
- Insert a new 9V battery, ensuring the positive (+) and negative (-) terminals align correctly with the markings inside the compartment.
- Close the battery compartment cover securely until it clicks into place.
Note: Always use fresh alkaline batteries for optimal performance. Remove the battery if the device will not be used for an extended period to prevent leakage.
5. Operating Instructions
The KUJOBUY Pet Trainer offers three primary functions: LED light, ultrasonic training, and ultrasonic chasing/deterrent.
5.1 Using the LED Light
To use the LED flashlight:
- Ensure the device has a working battery.
- Press the 'Light' button located on the front of the device. The LED lights will illuminate.
- Release the button to turn off the light.
5.2 Ultrasonic Training Mode (Position I)
This mode is ideal for general behavior correction and training, such as stopping excessive barking, preventing jumping, or discouraging unwanted chewing.
- Slide the mode selector switch to Position I (Train).
- Point the front of the device directly at the dog from a distance of 5-20 feet (1.5-6 meters).
- Press and hold the 'ON' button for 1-2 seconds. The device will emit a high-frequency ultrasonic sound that is audible to dogs but generally inaudible to humans.
- Release the 'ON' button once the dog stops the unwanted behavior.
- Use positive reinforcement (praise, treats) when the dog complies.

Figure 5.1: The device facilitates safe and effective pet training.
5.3 Ultrasonic Chaser/Deterrent Mode (Position II)
This mode emits a stronger ultrasonic wave and is intended for more urgent situations, such as deterring aggressive dogs, breaking up dog fights, or preventing stray dogs from approaching.
- Slide the mode selector switch to Position II (Chaser).
- Point the front of the device directly at the dog.
- Press and hold the 'ON' button. The stronger ultrasonic sound will be emitted.
- Release the 'ON' button once the dog retreats or the situation is resolved.

Figure 5.2: The device can be used to deter excessive barking effectively.
Important: Do not continuously press the 'ON' button for more than 6 seconds to avoid overheating and to ensure the device's longevity. Always use the device responsibly and humanely.
6. Maintenance
6.1 Cleaning
To clean the device, wipe it with a soft, dry cloth. Do not use abrasive cleaners, solvents, or immerse the device in water.
6.2 Storage
Store the device in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, remove the battery to prevent leakage and damage.
6.3 Battery Replacement
Replace the 9V battery when the LED light dims or the ultrasonic function becomes less effective. Follow the battery installation steps in Section 4.1.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not turning on / No light | Dead or improperly installed battery. | Check battery polarity; replace with a new 9V battery. |
| Ultrasonic function seems weak or ineffective | Low battery; incorrect mode selected; dog is too far away; dog is deaf or desensitized. | Replace battery; ensure switch is in 'Train' (I) or 'Chaser' (II) position; reduce distance to dog (within 20 feet); try 'Chaser' mode for more impact; consult a vet if dog is unresponsive. |
| Dog shows no reaction | Dog may be deaf or have hearing impairment; device not pointed correctly; environmental noise interference. | Ensure direct line of sight; try different angles; use in a quieter environment; consult a veterinarian to check dog's hearing. |
| Device overheats | Continuous use for too long. | Do not press the 'ON' button for more than 6 seconds continuously. Allow device to cool down. |
8. Specifications
| Attribute | Detail |
|---|---|
| Model Name | Pet Trainer |
| Item Model Number | KB-Ultrasonic anti bark repeller (ZF-853) |
| Brand Name | KUJOBUY |
| Color | Black |
| Item Weight | 2.08 ounces (59 grams) |
| Item Package Dimensions (L x W x H) | 7.48 x 5.43 x 1.14 inches (19 x 13.8 x 2.9 cm) |
| Product Dimensions (L x W x H) | 5.51 x 1.57 x 1.18 inches (14 x 4 x 3 cm) |
| Power Source | 1 x 9V Battery (not included) |
| Target Audience | Consumer Audience, dogs |

Figure 8.1: Approximate dimensions of the device.
9. Safety Information and Precautions
- This device is intended for use with dogs only. Do not use on other animals or humans.
- Do not point the device directly at human ears. The ultrasonic sound, while generally inaudible, can be irritating at close range.
- Avoid continuous pressing of the 'ON' button for more than 6 seconds to prevent overheating and damage to the device.
- Keep out of reach of children. This is not a toy.
- Do not use this device on aggressive dogs if you are not trained in dog behavior. It is a training aid, not a substitute for professional handling of aggressive animals.
- The effectiveness of the device may vary depending on the dog's age, temperament, hearing ability, and training history.
- Do not immerse the device in water or expose it to excessive moisture.
- Dispose of batteries responsibly according to local regulations.
10. Warranty and Support
For warranty information, product support, or inquiries, please refer to the purchase platform or contact KUJOBUY customer service directly. You can visit the official KUJOBUY store on Amazon for more information and contact options:
Visit the KUJOBUY Store on Amazon
Please have your product model number (KB-Ultrasonic anti bark repeller) and purchase details ready when contacting support.