1. Introduction
The Salange K2 is a versatile and portable smart projector designed for entertainment and outdoor use. Featuring Android 11.0, 4K decoding support, auto-focus, and auto-keystone correction, it delivers a high-quality viewing experience. Its built-in battery and Bluetooth speaker make it ideal for on-the-go entertainment. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your Salange K2 projector.
2. Package Contents
Before you begin, please check the package for the following items:
- 1 x Salange K2 Projector
- 1 x Remote Control
- 1 x User Manual
- 1 x Power Cord
- 1 x Power Adapter

3. Setup
3.1 Powering On
- Connect the power adapter to the projector's power input and then to a power outlet.
- Press the power button on the projector or the remote control to turn it on.

3.2 Placement and Projection Adjustment
The K2 projector offers flexible placement options due to its 230° adjustable projection angle and automatic correction features.
- Flexible Angle: The projector can be freely adjusted up and down by 230° to project images from a wall to the ceiling, or any desired surface.
- Auto Focus: The projector features 3-second auto-focus to ensure a clear image.
- Auto Keystone Correction: It provides 2-second automatic trapezoidal correction for skewed images, ensuring a structured and rectangular projection.



3.3 Projection Distance and Size
The optimal projection distance ranges from 1.2 to 4 meters, allowing for screen sizes from 33 to 150 inches.

4. Operating Instructions
4.1 Navigation and Android 11.0 System
The Salange K2 runs on Android 11.0, providing access to over 4,000 apps including Netflix, YouTube, and Amazon Prime. Use the included Bluetooth remote control for easy navigation.

4.2 Screen Sharing
Connect your iPhone/Android smartphone or tablet to the projector via Wi-Fi for convenient screen sharing. The projector supports Airplay, Miracast, and DLNA protocols.

4.3 Audio and Bluetooth Connectivity
The K2 projector features built-in 10W Hi-Fi stereo speakers (2x5W with 2 bass boosters) for immersive sound. It also supports Bluetooth 5.2 for connecting external audio devices or using the projector as a standalone Bluetooth speaker.

4.4 Battery Operation
The optional built-in Li-ion battery provides continuous operation for approximately 91 minutes for movie playback and up to 4 hours for music playback after a full charge, making it suitable for outdoor use.


4.5 Eye Protection Feature
The projector utilizes diffuse reflection and low blue light technology to protect your eyes, making it safe for extended viewing, including online learning for children.

5. Maintenance
5.1 Cleaning
- Lens: Use a soft, lint-free cloth specifically designed for optical lenses. Do not use abrasive cleaners or cloths.
- Exterior: Wipe the projector's exterior with a soft, dry cloth. For stubborn dirt, slightly dampen the cloth with water, then wipe dry.
- Ventilation: Ensure the ventilation openings are clear of dust and debris to prevent overheating. Use a soft brush or compressed air to gently clean them.
5.2 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.
6. Troubleshooting
6.1 Common Issues and Solutions
- No Image / Black Screen:
- Ensure the projector is powered on and connected correctly.
- Check the input source. - Image is Blurry:
- Allow the auto-focus feature to complete its cycle (3 seconds).
- Ensure the projector lens is clean. - Skewed Image:
- Allow the auto-keystone correction to complete its cycle (2 seconds).
- Adjust the projector's physical position if the skew is severe. - No Color / Black and White Picture:
- This could indicate a software or hardware issue. Try restarting the projector. If the problem persists, contact customer support. - Fan Noise is Too Loud:
- Ensure the projector's ventilation is not blocked.
- Operate the projector in a well-ventilated area.
- The K2 is designed for low noise operation (<36dB). If noise is excessive, contact support. - Screen Zoom Adjustment:
- The projector primarily uses projection distance to adjust screen size. Digital zoom options may be available in the Android settings. - Charging Issues:
- Ensure the power adapter and cable are securely connected.
- Use the original power adapter provided. If the battery does not charge after prolonged connection, contact customer support.
7. Specifications
| Feature | Specification |
|---|---|
| Brand Name | Salange |
| Model | K2 |
| System | Android 11.0 |
| CPU | H713 / Quad-core ARM Cortex-A53 |
| GPU | Mali-G31 (supports OpenGL ES3.2, Vulkan 1.1, OpenCL2.0) |
| Memory | RAM 1GB, ROM 8GB |
| Optical Resolution | 1280x720dpi (Max support 4K video signal input) |
| Brightness | 200 ANSI Lumens (approx. 130-150 ANSI lumens based on ANSI test method) |
| Contrast Ratio | 1000:1-2000:1 |
| Projection Technology | LED |
| Light Source | Led Light |
| Light Lifetime | 50000 Hrs |
| Projected Dimension | 50-150 inches |
| Projection Distance | 1.2-4m |
| Screen Scale | 4:3/16:9 |
| Keystone Correction | Auto Correction (2s Auto Keystone) |
| Focus | Auto Focus (3s Auto Focus) |
| Projective Mode | Throwing, Ceiling, Back Projection, Mirror Image |
| Built-in Speaker | Yes (2x5W Speaker, 2 Bass Boosters) |
| Bluetooth | BT 5.2 |
| Wi-Fi | 2.4G & 5G dual-band WiFi (WIFI6) |
| Wireless Mirror Screen | Supports Airplay/Miracast/DLNA protocol |
| Battery | Built-in Li-ion battery (optional, 91 min movie, 4 hrs music) |
| Power (W) | 60W (15V4A) |
| Weight | 1.5kg |
| Portable | Yes |
| Use | Entertainment Projector |
| Home Theater Projector | Yes |
| Function | Video Playback |
| Remote controller included | Yes |
| Inbox adaptor | Yes |
| Origin | Mainland China |
| Certification | CE, FCC, RoHS |
8. User Tips
- Optimal Viewing: For the best image quality, use the projector in a dimly lit or dark room.
- Portability: The compact size and optional built-in battery make it easy to carry for outdoor movies or presentations.
- Quiet Operation: The projector operates at a low noise level (<36dB), ensuring a quiet viewing environment.
- Gaming: Utilize the 2.4G/5G dual-band Wi-Fi and Bluetooth 5.2 for a smooth gaming experience with minimal lag.
- Ambient Lighting: The K2 can also function as an atmosphere lamp, adding light and shadow effects to your living space.




9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official Salange website or contact your retailer. Keep your purchase receipt as proof of purchase.





