Introduction
The RC Ultrasonic Dog Repeller U20 is a training device designed to assist in modifying unwanted dog behaviors. It emits ultrasonic sound to deter actions such as excessive barking, jumping, chewing, or digging. This manual provides detailed instructions for the safe and effective use of your device.
Product Overview
Familiarize yourself with the components of your RC Ultrasonic Dog Repeller U20.

Image Description: This diagram illustrates the various parts of the RC Ultrasonic Dog Repeller U20. Key features include the LED Indicator, Normal Ultrasound button, Enhanced Ultrasound (MAX) button, Lamp Button, On/Off Switch, USB C Charging Port, Wrist Strap attachment point, Ultrasonic emission ports, and the LED lamp.
- LED Indicator: Displays device status.
- Normal Ultrasound Button: Activates standard ultrasonic emission.
- Enhanced Ultrasound (MAX) Button: Activates a stronger ultrasonic emission.
- Lamp Button: Controls the LED light function.
- On/Off Switch: Powers the device on or off.
- USB C Charging Port: For recharging the internal battery.
- Wrist Strap: For secure handling.
- Ultrasonic Emission Ports: Where the ultrasonic sound is emitted.
- LED Lamp: Provides illumination.
Safety Information
Please read and adhere to the following safety guidelines before using the device:
- Do Not Point Directly: Avoid pointing the device directly at human ears or eyes to prevent discomfort or potential harm.
- Age Restrictions: Do not use this device on puppies younger than 6 months old.
- Health Considerations: Do not use on sick, old, pregnant, or aggressive dogs, as they may react unpredictably or experience undue stress.
- Supervised Use: Always use the device under supervision and observe your dog's reaction.
- Storage: Keep out of reach of children and pets when not in use.
Setup
- Initial Charge: Before first use, fully charge the device. Connect the included USB-C charging cable to the device's charging port and plug the other end into a compatible USB power source (e.g., USB adapter, power bank, laptop, car charger). The LED indicator will show charging status.
- Attach Wrist Strap: If desired, attach the wrist strap to the designated loop on the device for secure handling during use.
- Power On: Slide the On/Off switch to the "On" position. The LED indicator may briefly illuminate.

Image Description: This image shows the RC Ultrasonic Dog Repeller U20 being charged via its USB-C port, illustrating the connection of the charging cable to the device.
Operating Instructions
The RC Ultrasonic Dog Repeller U20 offers two ultrasonic modes and an LED light function.
- Activating Normal Ultrasound: When your dog exhibits an unwanted behavior (e.g., barking), press and hold the Normal Ultrasound button. Release the button once the behavior stops.
- Activating Enhanced Ultrasound (MAX): For more stubborn behaviors or in situations requiring a stronger deterrent, press and hold the Enhanced Ultrasound (MAX) button. Release the button when the behavior ceases.
- Using the LED Light: Press the Lamp Button to turn on the LED light. Press it again to turn it off. This can be used for visibility in low-light conditions.
- Effective Range: The optimal effective range for the ultrasonic function is up to 10 meters (approximately 32.8 feet). While it may have some effect up to 40 feet, its effectiveness is reduced at this extended distance.
- Target Age Range: This device is most effective for dogs between 6 months and 8 years of age. Dogs outside this range may not respond as effectively due to developmental stages or potential hearing issues.

Image Description: This image depicts the RC Ultrasonic Dog Repeller U20 being held by a hand, with ultrasonic waves emanating towards a barking dog, illustrating its intended use for behavior correction.

Image Description: A collage of images showing "Before" and "After" scenarios of dog behavior. The "Before" images show dogs exhibiting unwanted behaviors like barking and fighting, while the "After" images show calm and well-behaved dogs, suggesting the device's role in behavior correction.
Charging
The device is powered by a rechargeable Lithium Ion battery. A charging cable is included with your purchase.
- Battery Type: 1 Lithium Ion battery (included).
- Charging Time: Approximately 2 hours for a full charge.
- Battery Life: A full charge can last up to 30 days, depending on usage.
- Charging Method: Use the provided USB-C cable to connect to a standard USB power source.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your device.
- Cleaning: Wipe the device with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: For optimal battery life, avoid fully discharging the battery frequently. Recharge when the battery indicator is low.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Battery is depleted. | Charge the device fully using the provided USB-C cable. |
| Ultrasonic function is not working. | Device is off, battery is low, or outside effective range. | Ensure the device is switched on and charged. Use within 10 meters (32.8 feet) of the dog. |
| Dog does not respond to the device. | Dog's age, hearing ability, or temperament. | Ensure the dog is within the recommended age range (6 months to 8 years). Some dogs may be less responsive. Consistency in training is key. Consult a professional dog trainer if issues persist. |
| LED light is not working. | Battery is low or light is faulty. | Charge the device. If the problem persists after charging, contact customer support. |
Specifications
- Model: U20 (Supersonic U20)
- Brand: RC
- Color: Charcoal
- Item Weight: 6.4 ounces
- Package Dimensions: 7.17 x 3.27 x 1.73 inches
- Battery: 1 Lithium Ion battery (included)
- Included Components: Charging Cable, Manual
- Effective Ultrasonic Range: Up to 10 meters (32.8 feet)
- Recommended Dog Age: 6 months to 8 years
- Manufacturer: Rashidian's Cyberstore
Warranty and Support
Your RC Ultrasonic Dog Repeller U20 comes with comprehensive warranty coverage and support.
- Manufacturer Warranty: A 1-year manufacturer warranty covers defects in materials and workmanship from the date of purchase.
- Limited Lifetime Warranty: After the initial 1-year manufacturer warranty, a limited lifetime warranty applies. Please refer to the manufacturer's terms for details on coverage.
- Support: For warranty claims, technical assistance, or any questions regarding your device, please contact Rashidian's Cyberstore, the manufacturer. Contact information can typically be found on the product packaging or their official website.