WiMiUS S4
WiMiUS Mini Projector S4 User Manual
Model: S4
1. Introduction
Thank you for choosing the WiMiUS Mini Projector S4. This projector is designed to provide a high-quality visual experience for home theater, gaming, and small meetings. With its advanced features and versatile connectivity, you can enjoy your favorite content on a large screen with ease.
This manual provides detailed instructions on setting up, operating, and maintaining your projector to ensure optimal performance and longevity.
2. What's in the Box
Upon unboxing your WiMiUS Mini Projector S4, please verify that all the following items are included:
- WiMiUS Mini Projector S4 Unit
- Remote Control
- Power Cable
- HDMI Cable
- VGA Cable
- AV Cable
- User Manual (this document)

Image: WiMiUS Mini Projector S4 and its accessories, including cables and remote control.
3. Specifications
| Feature | Description |
|---|---|
| Brand | WiMiUS |
| Model Number | S4 |
| Native Resolution | 1920 x 1080P (Supports 4K video) |
| Contrast Ratio | 20000:1 |
| Display Size | 50" to 300" |
| Projection Distance | 3-15 feet |
| Aspect Ratios | 4:3 / 16:9 |
| Lamp Lifetime | 65,000 hours |
| Connectivity | 2x HDMI, 2x USB, AV, VGA, 3.5mm Audio Out, Bluetooth, Wi-Fi |
| Special Features | Dust-Proof, Built-In Speaker (Stereo), Digital Keystone Correction (4P/4D), Zoom (75-100%) |
| Dimensions | 8.26 x 5.7 x 3.14 inches |
| Weight | 7.34 pounds |
4. Setup Guide
4.1 Placement
Choose a flat, stable surface for your projector. Ensure there is adequate ventilation around the unit. For optimal viewing, position the projector directly in front of your screen or wall.

Image: The projector positioned to display a large image, illustrating recommended projection distances for various screen sizes.
4.2 Power Connection
Connect the provided power cable to the projector's power input port and then plug the other end into a standard electrical outlet.
4.3 Connecting Devices
The WiMiUS S4 projector offers a variety of input ports for connecting different devices:
- HDMI: Use the provided HDMI cable to connect devices like TV sticks, gaming consoles (PS5, Switch), laptops, or DVD players to the HDMI1 or HDMI2 ports.
- USB: Insert USB drives into the U1 or U2 ports to play media files directly.
- VGA: Connect older computers or monitors using the VGA port.
- AV: Use the AV cable for devices with composite video and stereo audio outputs.
- Audio Out (3.5mm Jack): Connect external speakers or headphones for enhanced audio.

Image: Detailed view of the projector's rear panel, highlighting USB, HDMI, VGA, Audio, and AV input/output ports for various device connections.
4.4 Bluetooth Connectivity
The projector supports Bluetooth 5.0 for wireless audio connections. To pair with a Bluetooth speaker or headphones:
- Ensure your Bluetooth audio device is in pairing mode.
- Navigate to the Bluetooth settings on the projector's menu.
- Select your device from the list to connect.

Image: The projector wirelessly connected to a Bluetooth speaker and headphones, demonstrating its audio connectivity feature.
5. Operating Instructions
5.1 Power On/Off
Press the power button on the projector or the remote control to turn the unit on or off.
5.2 Focus and Keystone Correction
Adjust the image clarity and shape using the focus and keystone correction dials located on the top of the projector. The 4P/4D keystone correction allows for precise adjustment of the image corners, ensuring a perfectly rectangular display even if the projector is not perfectly aligned with the screen.
The zoom function allows you to adjust the image size from 75% to 100% without moving the projector.

Image: Visual comparison demonstrating the clarity and sharpness of the 1080P resolution compared to 720P, and the impact of higher ANSI lumens on brightness.
5.3 Input Source Selection
Press the "Source" button on the projector or remote control to cycle through available input sources (HDMI1, HDMI2, USB1, USB2, VGA, AV).
5.4 Menu Navigation
Use the navigation buttons (up, down, left, right) and the "OK" button on the projector or remote to navigate through the on-screen menu. Adjust settings such as picture mode, sound mode, and projection mode as needed.
6. Maintenance
6.1 Cleaning the Lens
Gently wipe the projector lens with a soft, lint-free cloth. Avoid using abrasive cleaners or excessive pressure, as this can damage the lens coating.
6.2 Dust Filter Cleaning
Regularly clean the dust filter to maintain optimal airflow and prevent overheating. Refer to the detailed instructions in the full user manual for filter removal and cleaning procedures.
6.3 Storage
When not in use for extended periods, store the projector in a cool, dry place, away from direct sunlight and extreme temperatures. Use the original packaging or a protective case to prevent dust accumulation and physical damage.

Image: Illustration of the projector's internal cooling system and options for ceiling mounting, emphasizing features that contribute to longevity and versatile placement.
7. Troubleshooting
| Problem | Possible Cause / Solution |
|---|---|
| No image on screen |
|
| Image is blurry |
|
| Image is distorted (trapezoid shape) |
|
| No sound |
|
| Bluetooth device not connecting |
|
8. Warranty and Support
WiMiUS is committed to providing excellent customer service. Your WiMiUS Mini Projector S4 comes with the following:
- 2-Year Money Back Guarantee: For any dissatisfaction within two years of purchase.
- 3-Year Repair Warranty: Comprehensive repair service for three years from the purchase date.
- Lifetime Technical Support: Access to technical assistance for the lifetime of the product.
For any questions or assistance, please contact our 24/7 after-sales email support. Refer to the contact information provided in the full user manual or on the official WiMiUS website.
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