1. Product Overview
The ROUASD C128 is a 4-channel, 2.4G single-rotor brushless remote control helicopter equipped with a 1080P camera. It features a 6-axis gyroscope and optical flow positioning for stable flight, making it suitable for both beginners and experienced users. Its design is inspired by unmanned aerial vehicles, offering good wind resistance and durability.

Image 1.1: The ROUASD C128 RC Helicopter, showcasing its sleek design and main rotor.
2. Package Contents
Please verify that all items listed below are included in your package:
- Graphic Carton (Packaging)
- Helicopter (C128 Model)
- Remote Controller
- User Manual
- USB Charger
- Main Rotor Blade (2 pieces)
- Tail Rotor Blade (1 piece)
- Lithium Battery (Quantity may vary based on purchase option)
- Screwdriver
- Hex Wrench
3. Safety Precautions
To ensure safe operation and prevent damage or injury, please read and adhere to the following safety guidelines:
- Age Recommendation: This product is recommended for users aged 14 and above.
- Flight Environment: Operate the helicopter in open, unobstructed areas, away from people, animals, buildings, and power lines. Avoid flying in strong winds or adverse weather conditions.
- Battery Safety: Use only the provided charger and original batteries. Do not overcharge or puncture batteries. Discontinue use if batteries show signs of swelling or damage.
- Rotor Blades: Keep hands, face, and loose clothing away from rotating blades. Always power off the helicopter and remote control before handling the blades.
- Supervision: Younger users should always be supervised by an adult during operation.
- Water Exposure: Avoid exposing the helicopter to water or moisture, as this can damage electronic components.
- Maintenance: Regularly inspect the helicopter for any damage or loose parts before each flight.
4. Setup
4.1 Battery Installation and Charging
The C128 helicopter uses a 3.7V 580mAh lithium battery. The remote controller requires 4 x 1.5V AA batteries (not included).
- Helicopter Battery: Insert the modular lithium battery into the helicopter's battery compartment. Ensure it clicks securely into place.
- Charging: Connect the helicopter battery to the dedicated USB charger. Plug the USB charger into a suitable USB power source (e.g., computer USB port, USB wall adapter). The charging time is approximately 60 minutes. The LED indicator on the battery will show its charging status.
- Remote Controller Batteries: Open the battery compartment on the back of the remote controller and insert 4 AA batteries, observing correct polarity. Close the compartment.

Image 4.1: The intelligent flight battery with LED indicators, designed for easy replacement.
4.2 Pairing the Remote Controller
Follow these steps to pair the remote controller with the helicopter:
- Ensure both the helicopter and the remote controller are fully charged.
- Place the helicopter on a flat, level surface.
- Turn on the helicopter's power switch. The indicator lights on the helicopter will flash.
- Turn on the remote controller's power switch.
- Push the left joystick (throttle) all the way up, then pull it all the way down. The remote controller will emit a beep, and the helicopter's indicator lights will become solid, indicating successful pairing.
- The helicopter is now ready for flight.
4.3 Pre-Flight Checks
- Verify that the helicopter battery is securely installed and fully charged.
- Check that the remote controller has fresh batteries.
- Inspect rotor blades for any damage or obstructions.
- Ensure the flight area is clear of obstacles and people.
5. Operating Instructions
5.1 Basic Flight Controls
- Throttle (Left Joystick Up/Down): Controls ascend and descend.
- Yaw (Left Joystick Left/Right): Controls rotation of the helicopter left or right.
- Pitch (Right Joystick Up/Down): Controls forward and backward movement.
- Roll (Right Joystick Left/Right): Controls left and right sideward movement.
5.2 Advanced Flight Features
- 6G Mode: Provides stable flight, especially beneficial for beginners, by utilizing the 6-axis gyroscope for enhanced stability.
- Optical Flow Positioning: This feature greatly improves the stability of aerial photography and hovering by using a downward-facing sensor to detect ground patterns.

Image 5.1: Illustration of the optical flow localization system, enhancing flight stability.
- One-Button Takeoff & Landing: Press the designated button on the remote controller for automated takeoff or landing, simplifying operation.
- Low Voltage Alarm: The helicopter will provide an alert when the battery is low, prompting the user to land safely.
- Stall Protection: This feature helps prevent motor damage in case of blade obstruction.
- Out-of-Control Protection: If the helicopter loses signal from the remote controller, it will initiate a controlled landing to minimize damage.
5.3 1080P Camera Operation
The C128 is equipped with a 1080P wide-angle camera for high-definition image and video capture.
- Image Transmission: The camera provides real-time image transmission without delay, allowing for clear outdoor photography.
- 90° Rotatable Lens: The lens can be rotated 90 degrees, offering wider perspectives and enabling the capture of large-scale shots.

Image 5.2: Demonstrates the 1080P image quality for outdoor photography.

Image 5.3: The 90-degree rotatable high-definition lens, allowing for varied perspectives.
6. Maintenance
Proper maintenance ensures the longevity and optimal performance of your C128 helicopter.
- Cleaning: After each flight, gently wipe the helicopter with a soft, dry cloth to remove dust and debris. Avoid using water or chemical cleaners.
- Rotor Blade Replacement: If rotor blades become damaged or bent, replace them immediately using the provided spare blades and screwdriver. Ensure the new blades are securely fastened.
- Battery Care: Store batteries in a cool, dry place. Do not store fully charged or completely depleted batteries for extended periods. Charge them to about 50% for long-term storage.
- Storage: When not in use, store the helicopter and remote control in a safe place, away from direct sunlight, extreme temperatures, and moisture.
7. Troubleshooting
If you encounter issues with your C128 helicopter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Helicopter does not respond to remote. | Not paired; low battery in remote or helicopter; out of range. | Re-pair the remote and helicopter. Charge helicopter battery. Replace remote batteries. Ensure within 100-120m range. |
| Unstable flight or drifting. | Not calibrated on a flat surface; damaged rotor blades; strong wind. | Ensure helicopter is placed on a flat surface during power-on/pairing. Inspect and replace damaged blades. Fly in calm conditions. |
| Camera not transmitting or poor image quality. | Weak Wi-Fi signal; camera lens obstructed or dirty. | Ensure strong Wi-Fi connection between helicopter and device (if applicable). Clean camera lens. |
| Short flight time. | Battery not fully charged; aging battery. | Ensure battery is fully charged (approx. 60 mins). Consider replacing the battery if it's old. |
8. Specifications
Detailed specifications for the ROUASD C128 RC Helicopter:
| Feature | Detail |
|---|---|
| Model | C128 |
| Material | PA/PC |
| Camera | 1080P Wide-angle |
| Video Capture Resolution | 1920x1080 Pixels |
| Rotor Diameter | 23.8 cm |
| Aircraft Weight | 100 g |
| RC Weight | 400 g |
| Aircraft Battery | 3.7V 580mAh Lithium Battery |
| RC Battery | 4 x 1.5V AA Batteries (Not Included) |
| Remote Control Distance | 100-120 m |
| Remote Control Time | Approx. 15 mins |
| Charging Time | Approx. 60 mins |
| Product Dimensions | 23 x 6 x 7 cm |
| Connectivity Technology | USB (for charging), Wi-Fi (for camera) |
| Control Type | Remote Control |
| Skill Level | Beginner |

Image 8.1: Dimensions of the C128 RC Helicopter.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact details provided with your purchase or visit the official ROUASD website. Keep your proof of purchase for any warranty claims.