WiMiUS K3
WiMiUS K3 5G WiFi Projector Instruction Manual
Model: K3 (AKEY7 MAX PRO Projector)
1. Safety Information
Please read all instructions carefully before using the projector and retain them for future reference. Follow all warnings and instructions marked on the product.
- Do not block the ventilation openings. Ensure adequate airflow around the projector to prevent overheating.
- Do not look directly into the projector lens when the lamp is on. The bright light can cause eye damage.
- Keep the projector away from water or other liquids. Do not expose it to rain or moisture.
- Place the projector on a stable, flat surface. Avoid placing it in areas with excessive vibration or dust.
- Use only attachments/accessories specified by the manufacturer.
- Unplug the projector during lightning storms or when unused for long periods.
- Refer all servicing to qualified service personnel.
2. Package Contents
Verify that all items listed below are included in your package:
- WiMiUS K3 Projector
- Remote Control
- Power Cable
- HDMI Cable
- AV Cable
- User Manual

Image: WiMiUS K3 Projector with included cables, remote, and user manual.
3. Product Overview
The WiMiUS K3 is a 5G WiFi projector designed for home theater and video entertainment. It offers a native 1920x1080 resolution, providing clear and sharp images. Key features include:
- Native 1080P Resolution: Delivers a sharp and detailed picture, significantly clearer than projectors that only support 1080P but have a lower native resolution.
- High Contrast Ratio: Features a 10000:1 contrast ratio for bright and vivid images in dark or semi-dark environments.
- Integrated HiFi Speaker: Equipped with dual internal 10W Hi-Fi speakers for stereo, clear, and loud audio without needing external speakers in smaller rooms.
- Advanced Cooling System: Designed to efficiently dissipate heat, extending the projector's lifespan.
- Flexible Projection Size: Supports screen sizes from 50 to 300 inches with a projection distance of 1.5 to 8 meters.
- Multiple Connectivity Options: Includes HDMI, USB, VGA, and AV ports. Compatible with PCs, Fire TV sticks, Chromecasts, PS4, and smartphones (requires a WiFi display dongle for direct smartphone connection).
- Eye-Friendly Display: Utilizes diffuse reflection imaging to reduce eye strain during extended viewing.

Image: Comparison of WiMiUS K3 projector's image brightness against another projector.

Image: Close-up of the projector's keystone and focus adjustment features.
4. Setup Guide
4.1 Initial Placement
Position the projector on a flat, stable surface. Ensure there are no obstructions to the lens or ventilation ports. The ideal projection distance ranges from 1.5 to 8 meters for a 50 to 300-inch screen.
4.2 Power Connection
- Connect the power cable to the projector's power input.
- Plug the other end of the power cable into a power outlet.
- Press the power button on the projector or remote control to turn it on.
4.3 Connecting Devices
The K3 projector supports various input sources:
- HDMI: Connect your PC, laptop, gaming console (PS4), or streaming device (Fire TV Stick, Chromecast) using an HDMI cable.
- USB: Insert a USB drive to play media files directly.
- VGA: Connect older computers or devices using a VGA cable.
- AV: Use the provided AV cable for devices with AV output.
- Smartphone (via WiFi Display Dongle): For wireless connection with smartphones, a separate WiFi display dongle is required.
4.4 Focus and Keystone Adjustment
After connecting and powering on, adjust the image for clarity and shape:
- Focus: Rotate the focus ring on the projector lens until the image appears sharp and clear.
- Keystone: If the projected image is trapezoidal, use the keystone correction dial (or digital keystone in settings) to adjust it into a rectangular shape. The K3 supports ±15° keystone correction.

Image: The WiMiUS K3 projector displaying a large image on a screen, demonstrating its projection capabilities.
5. Operating Instructions
5.1 Power On/Off
Press the power button on the projector or the remote control to turn the device on or off.
5.2 Input Source Selection
Use the "Source" button on the remote control or the projector's control panel to cycle through available input sources (HDMI1, HDMI2, USB, VGA, AV).
5.3 Menu Navigation
Use the arrow keys on the remote control to navigate through the on-screen menu. Press "OK" to confirm selections and "Return" to go back.
5.4 Audio Output
The projector has built-in speakers. For external audio, connect speakers via the 3.5mm audio output port. Note: If connecting a Fire TV Stick, ensure Dolby Digital output is turned off in the Fire TV Stick's audio settings to prevent sound issues.
Video: Demonstrates the projector's brightness with indoor lights on and off, showing clear image visibility in various lighting conditions.
Video: Shows the projector's performance in daylight with lights on and off, highlighting its adaptability to different room lighting.
6. Maintenance
6.1 Cleaning the Lens
Use a soft, lint-free cloth and specialized lens cleaning solution to gently wipe the projector lens. Avoid abrasive materials or excessive pressure.
6.2 Cleaning the Projector Body
Wipe the exterior of the projector with a soft, dry cloth. Do not use harsh chemicals or solvents.
6.3 Ventilation
Regularly check and clean the ventilation openings to ensure proper airflow and prevent dust buildup, which can lead to overheating and reduce the lifespan of the projector.
6.4 Lamp Life
The projector's LED light source has an estimated operating life of 10 years under normal usage conditions.
7. Troubleshooting
- No Signal:
- Ensure the input source is correctly selected (e.g., HDMI1, USB).
- Check all cable connections (HDMI, VGA, AV) to ensure they are secure.
- Verify the connected device (PC, streaming stick) is powered on and outputting a signal.
- Blurry Image:
- Adjust the focus ring on the projector lens.
- Ensure the projection distance is within the recommended range (1.5-8m).
- Clean the projector lens if it appears dirty.
- Trapezoidal Image:
- Use the keystone correction dial or digital keystone settings to adjust the image shape.
- Ensure the projector is placed as perpendicular to the screen as possible.
- No Sound or Poor Sound Quality:
- Check the volume settings on both the projector and the connected device.
- If using a Fire TV Stick, go to its audio settings and turn off Dolby Digital output.
- Ensure external speakers are properly connected if used.
- Overheating:
- Ensure all ventilation openings are clear and not blocked.
- Operate the projector in a well-ventilated area.
8. Specifications
| Brand | WiMiUS |
| Model Name | K3 |
| Model Number | AKEY7 MAX PRO Projector |
| Native Resolution | 1920 x 1080 (Full HD) |
| Display Resolution Maximum | 1080 Pixels |
| Brightness | 7000 Lux |
| Contrast Ratio | 10000:1 |
| Connectivity Technology | HDMI, USB, VGA, AV, Built-In Wi-Fi |
| Display Type | LCD |
| Light Source Operating Life | 10 Years |
| Maximum Image Size | 300 Inches |
| Minimum Image Size | 50 Inches |
| Item Weight | 2.5 Kilograms |
| Control Method | Remote |
9. Warranty and Support
The WiMiUS K3 Projector comes with a 3-year warranty. For technical support, troubleshooting assistance, or warranty claims, please contact WiMiUS customer service through the retailer where the product was purchased or visit the official WiMiUS website for contact information.