Lofree Wireless Bluetooth Typewriter Mechanical Keyboard

1. Introduction

Thank you for choosing the YUEFAN Lofree EH112S Wireless Bluetooth Typewriter Mechanical Keyboard. This keyboard combines a retro typewriter aesthetic with modern mechanical key technology, offering a unique and comfortable typing experience. It features a dual-mode connection (wired USB and wireless Bluetooth), multi-device pairing, and a vibrant design. This manual provides essential information for setting up, operating, and maintaining your keyboard.

Image 1.1: Top-down view of the Lofree EH112S keyboard, highlighting its gradient blue and silver keycaps and overall design.

2. Package Contents

• Lofree EH112S Mechanical Keyboard
• USB-C Charging Cable
• User Manual

3. Setup and Connection

3.1. Charging the Keyboard

Before first use, 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, USB wall adapter). The charging indicator light will show the charging status.

Image 3.1: Illustration of the keyboard's USB charging capability, highlighting its 4000mAh battery.

3.2. Wired Connection (USB)

To use the keyboard in wired mode, connect the USB-C cable from the keyboard to an available USB port on your computer. The keyboard will be automatically recognized and ready for use.

3.3. Wireless Connection (Bluetooth)

The keyboard supports Bluetooth connectivity and can pair with up to three devices simultaneously.

1. Turn on the keyboard's power switch.
2. Press and hold the Fn key and one of the Bluetooth keys (1!, 2@, or 3#) for 3-5 seconds until the indicator light flashes rapidly. This indicates the keyboard is in pairing mode.
3. On your device (computer, tablet, smartphone), enable Bluetooth and search for available devices.
4. Select "Lofree EH112S" from the list of found devices to complete the pairing process.
5. Once paired, the indicator light will stop flashing and remain solid for a few seconds.

To switch between paired devices, simply press Fn + 1!, Fn + 2@, or Fn + 3#.

Image 3.2: Detail showing the keys used for multi-pairing with up to three Bluetooth devices.

4. Operating Instructions

4.1. Key Functions

The keyboard features a standard English layout with 79 keys. Many keys have secondary functions accessible via the Fn key.

• Fn + F1-F12: Multimedia and system control functions (e.g., volume, playback, brightness).
• Fn + 1! / 2@ / 3#: Switch between paired Bluetooth devices.
• Fn + Left Arrow / Right Arrow: Adjust backlight brightness.

4.2. Backlight Adjustment

The keyboard is equipped with an LED white backlight. You can adjust its brightness to three different levels.

• Press Fn + Left Arrow to decrease backlight brightness.
• Press Fn + Right Arrow to increase backlight brightness.

Image 4.1: The keyboard's LED backlight feature, adjustable to 3 levels.

4.3. Operating System Compatibility

The Lofree EH112S keyboard is compatible with a wide range of operating systems, including iOS, Android, Mac OS, and Windows. It supports devices such as iPhones, iPads, MacBooks, smartphones, tablets, laptops, and desktop PCs.

Image 4.2: Visual representation of the keyboard's broad compatibility across different operating systems and device types.

5. Maintenance

5.1. Cleaning

To clean the keyboard, gently wipe the surface with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials. The round keycaps are removable and washable for thorough cleaning.

5.2. Battery Care

The keyboard features a built-in 4000mAh rechargeable lithium battery. To prolong battery life:

• Avoid exposing the keyboard to extreme temperatures.
• Charge the keyboard regularly, even if not in frequent use.
• Do not attempt to replace the battery yourself. Contact customer support if battery issues arise.

6. Troubleshooting

6.1. Keyboard Not Responding

• Ensure the keyboard is charged. Connect it to a power source using the USB-C cable.
• Check if the keyboard is powered on.
• If using Bluetooth, ensure it is properly paired. Try re-pairing the device.
• If using wired mode, ensure the USB-C cable is securely connected to both the keyboard and the computer. Try a different USB port or cable.

6.2. Bluetooth Connection Issues

• Make sure Bluetooth is enabled on your device.
• Ensure the keyboard is within the effective range (typically 10 meters) of your device.
• Remove the keyboard from your device's Bluetooth list and attempt to pair it again.
• If multiple devices are paired, ensure you have selected the correct channel (Fn + 1! / 2@ / 3#).

6.3. Backlight Not Working

• Check if the backlight brightness is set to the lowest level. Use Fn + Right Arrow to increase brightness.
• Ensure the keyboard has sufficient battery charge.

7. Specifications

8. Warranty and Support

For warranty information and technical support, please refer to the product packaging or contact your retailer. Keep your purchase receipt for warranty claims.