1. Introduction
The LOFREE Flow Low Profile Mechanical Keyboard offers a premium typing experience with its innovative design and advanced features. It combines a sleek, all-aluminum body with Kailh Full POM Switches, providing a smooth and responsive feel. Designed for versatility, it supports both Bluetooth and wired USB-C connections, making it suitable for various operating systems including Windows and Mac OS. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance of your LOFREE Flow keyboard.
2. Setup Guide
2.1 Package Contents
Before you begin, please ensure all items are present in the package:
- LOFREE Flow Low Profile Mechanical Keyboard
- USB Cable
2.2 Charging the Keyboard
For initial use, it is recommended to fully charge the keyboard. Connect the provided USB-C cable to the keyboard's charging port and the other end to a USB power source (e.g., computer USB port, wall adapter). A full charge takes approximately 3 hours and provides up to 40 hours of non-stop working time.

Image: LOFREE Flow keyboard connected via USB-C cable for charging.
2.3 Connectivity Options
The LOFREE Flow keyboard supports both Bluetooth wireless and USB-C wired connections.
2.3.1 Bluetooth Connection
- Ensure the keyboard is charged.
- Toggle the switch on the back of the keyboard to the Bluetooth mode.
- On your device (Laptop, PC, Tablet), enable Bluetooth and search for available devices.
- Select "LOFREE Flow" from the list of devices to pair.
- Follow any on-screen prompts to complete the pairing process.
2.3.2 Wired USB-C Connection
Connect the provided USB-C cable from the keyboard to a USB port on your computer. The keyboard will automatically switch to wired mode and begin charging.
2.4 Operating System Compatibility
The LOFREE Flow keyboard is compatible with both Windows and Mac OS. To switch between modes, use the function keys as indicated on the keycaps (e.g., Fn + N for Windows, Fn + M for Mac).
Video: An overview of the Lofree Flow keyboard, including unboxing and demonstration of its functionality.
3. Operating Instructions
3.1 Key Features Overview
- Low Profile and Full POM Switch: Features Kailh Full POM Switches for self-lubrication and a smooth typing experience.
- Gasket Design: Provides enhanced cushioning and even pressure distribution for comfortable typing.
- All Aluminum Design: Offers premium durability and a sleek aesthetic.
- Hot Swappable Design: Allows for easy customization of switches without soldering.
- RGB Sidelit and Backlit: Features customizable RGB lighting on the sides and white backlighting for keys.
- PBT Low-profile Keycaps: Utilizes five-sided dye-sublimation for vibrant and durable keycap legends.
3.2 Understanding the Switches
The LOFREE Flow keyboard comes with Kailh Full POM Switches, available in two main types:
- Ghost (Linear): Offers a quiet sound and featherlight touch. Ideal for smooth, consistent keystrokes.
- Phantom (Tactile): Provides a gentle sound and responsive tactile bump. Suitable for those who prefer feedback during typing.

Image: Detailed view of the Kailh Full POM Switch components.
Video: Demonstration of the Lofree Flow Low Profile Mechanical Keyboard, highlighting its typing experience and features.
3.3 Customizing with Hot-Swappable Design
The hot-swappable design allows you to easily change the switches without soldering. This means you can customize the typing feel to your preference, whether you desire a linear or tactile experience. Use the provided switch puller tool to carefully remove and insert switches.

Image: Hot-swappable design allowing for easy switch replacement.
Video: A look at the manufacturing process and features of the Lofree Flow keyboard, including hot-swappable switches.
3.4 Lighting Effects (RGB Sidelit and White Backlit)
The keyboard features both RGB sidelighting and white key backlighting. Use the designated function keys (refer to the keyboard's keycap legends) to cycle through different lighting modes and adjust brightness levels. This allows for customization to suit your environment or preference.

Image: The LOFREE Flow keyboard showcasing its RGB sidelit and white backlit features.
Video: A performance display of the Lofree Flow Mechanical Keyboard, demonstrating its lighting effects and typing feel.
4. Maintenance
4.1 Cleaning the Keyboard
To maintain the appearance and functionality of your LOFREE Flow keyboard, regular cleaning is recommended:
- Disconnect the keyboard from all power sources and devices before cleaning.
- Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution to wipe down the keycaps and aluminum body. Avoid excessive moisture.
- For dust and debris between keycaps, use compressed air or a small brush.
- If removing keycaps for deeper cleaning, use a keycap puller to prevent damage.
4.2 Keycap and Switch Care
The PBT low-profile keycaps are durable, but avoid using harsh chemicals that could damage the dye-sublimated legends. When replacing switches, ensure they are aligned correctly before pressing them into place to prevent bending pins.
5. Troubleshooting
5.1 Connectivity Issues
- Keyboard not connecting via Bluetooth:
- Ensure the keyboard is charged and the Bluetooth switch is on.
- Delete the keyboard from your device's Bluetooth list and attempt to re-pair.
- Try connecting to a different device to rule out device-specific issues.
- Wired connection not working:
- Ensure the USB-C cable is securely connected to both the keyboard and the computer.
- Try a different USB port on your computer.
- Test with a different USB-C cable if available.
5.2 Lighting Problems
- Backlight or sidelight not working:
- Check if the keyboard battery is low; lighting features may be disabled to conserve power.
- Ensure lighting is enabled via the function keys (refer to keycap legends).
- Perform a factory reset if possible (refer to manufacturer's support for specific instructions).
5.3 Key Response Issues
- Keys not registering or double-typing:
- Clean around and under the affected keycap.
- If hot-swappable, carefully remove and re-insert the switch for the problematic key.
- Consider replacing the switch if the issue persists.
6. Specifications
| Product Dimensions | 14.69 x 4.96 x 1.02 inches |
| Item Weight | 1.25 pounds |
| Manufacturer | LOFREE |
| Model Number | OE919 |
| Batteries | 1 Lithium Polymer battery required (included) |
| Compatible Devices | Laptop, PC, Tablet |
| Connectivity Technology | Bluetooth, USB-C |
| Keyboard Description | Mechanical |
| Number of Keys | 100 |
| Special Features | Ultra Slim, Backlit, Hotkeys and Media Keys, Low-Profile Key, Hot-Swappable |
| Keyboard Backlighting | Single Color (White Backlit), RGB Sidelit |
7. Warranty and Support
For warranty information and technical support, please refer to the official LOFREE website or contact their customer service directly. Keep your purchase receipt as proof of purchase for warranty claims.
Official LOFREE Store: Visit LOFREE Store on Amazon







