1. Introduction
Thank you for choosing the STMOUTUO Ultrasonic Dog Bark Deterrent Device. This device utilizes advanced ultrasonic technology to help manage excessive dog barking. When the device detects barking, it emits a high-frequency sound that is audible to dogs but generally inaudible to humans, serving as a gentle deterrent. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and a harmonious environment for you and your pet.
2. Key Features
- Upgraded Ultrasonic Technology: Automatically emits ultrasonic waves upon detecting dog barking to quiet the dog.
- Adjustable Levels: Features 4 levels of sensitivity (25-48FT) and 4 levels of frequency (15KHZ-30KHZ) to adapt to different dogs and environments.
- Wide Coverage: Effective range up to 48 feet, ideal for various indoor and outdoor settings.
- Safe & Humane: Emits sounds that are safe for pets and harmless to humans, providing a gentle training tool.
- Durable & Waterproof: Equipped with an IPX4 waterproof shell for reliable operation in diverse weather conditions.
- Rechargeable Battery: Long-lasting battery life (up to 30 days on a 5-hour charge) with convenient USB charging.
3. Package Contents
- 1 x STMOUTUO Ultrasonic Dog Bark Deterrent Device (Model K6)
- 1 x USB Charging Cable
- 1 x User Manual
4. Setup
- Charging the Device: Before first use, fully charge the device using the provided USB charging cable. The charging port is located on the side of the device. A full charge takes approximately 5 hours.
- Placement: The device can be easily hung on a tree, wall, or fence post using the integrated hanging holes. For optimal results, place the device within 30 feet of the area where barking typically occurs. Ensure the speaker faces the dog's direction.
- Power On/Off: Press the 'On/Off' button on the device to power it on or off. The digital display will illuminate when the device is active.

Figure 1: Front view of the device with dogs, illustrating its purpose.

Figure 2: Device positioned outdoors in a yard, demonstrating typical placement.
5. Operating Instructions
- Adjusting Sensitivity (S Button): The device has 4 sensitivity levels (25-48FT). Press the 'S' button to cycle through the levels. Higher sensitivity means the device will detect barking from a greater distance. Start with a lower sensitivity and increase if needed.
- Adjusting Frequency (F Button): The device offers 4 frequency levels (15KHZ-30KHZ). Different dogs may respond better to different frequencies. Press the 'F' button to cycle through the frequency options. It is recommended to change the frequency once a week to prevent dogs from becoming accustomed to a single sound.
- Automatic Operation: Once powered on and settings are selected, the device will automatically detect barking and emit ultrasonic waves. It will stop emitting sound as soon as the barking ceases.

Figure 3: Illustration of adjustable anti-bark modes and corresponding frequencies for various dog types.

Figure 4: Device in an outdoor setting, highlighting its dog-friendly and multifunctional aspects.
6. Maintenance
- Cleaning: Wipe the device with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Water Resistance: The device has an IPX4 waterproof rating, meaning it is resistant to splashing water from any direction. While it can withstand rain and snow, avoid submerging it in water.
- Battery Care: Recharge the device when the battery indicator is low. Store in a cool, dry place when not in use for extended periods.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not activating or not stopping barking. | Low battery; Incorrect sensitivity/frequency setting; Obstruction; Dog is out of range; Dog has adapted to frequency. | Charge the device; Adjust sensitivity and frequency levels; Ensure clear line of sight to the dog; Reposition device closer to the dog (within 30 feet for best results); Change the frequency setting. |
| Device activates without barking. | High sensitivity; Other loud noises (e.g., loud human voices, other animal sounds). | Reduce sensitivity level; Reposition device away from other noise sources. |
| Short battery life. | Frequent activation; Aging battery. | Ensure device is only active when needed; Fully charge the device; If issues persist, contact customer support. |

Figure 5: The device is designed to be 100% safe for both pets and humans.
8. Specifications
- Model Number: K6
- Item Weight: 5.6 ounces
- Item Package Dimensions (L x W x H): 5.12 x 3.58 x 1.93 inches
- Batteries: 1 Lithium Ion battery (included)
- Manufacturer: STMOUTUO
- Effective Range: Up to 48 feet (optimal within 30 feet)
- Frequency Range: 15KHZ-30KHZ
- Waterproof Rating: IPX4
9. Important Safety Information
- This device is intended for use with dogs only.
- Do not use this device on aggressive dogs.
- Keep out of reach of children.
- Avoid prolonged exposure to the ultrasonic sound at close range to human ears, although it is generally inaudible.
- Do not modify or disassemble the device.
10. Warranty and Support
For warranty information or technical support, please contact the manufacturer directly through their official website or the retailer where the product was purchased. Please retain your proof of purchase for any warranty claims.





