Lofree Bluetooth Wireless Numeric Keypad (EH113) User Manual

1. Overview

This manual provides instructions for the Lofree Bluetooth Wireless Numeric Keypad, Model EH113. This versatile device combines a mechanical numeric keypad with a calculator, offering both wireless Bluetooth and wired USB connectivity. It is designed for compatibility across various operating systems including iOS, Android, and Windows.

Image: The Lofree Bluetooth Wireless Numeric Keypad (EH113) in use, showcasing its compact design and key layout.

2. Setup

2.1 Initial Power On

Locate the power switch on the side of the keypad. Slide the switch to the "ON" position to power on the device.

2.2 Pairing via Bluetooth

1. Ensure the keypad is powered on.
2. Press the dedicated Bluetooth pairing button (refer to the device's physical layout for exact location, often indicated by a Bluetooth icon). The indicator light will begin to flash, signifying it is in pairing mode.
3. On your device (smartphone, tablet, or computer), navigate to the Bluetooth settings.
4. Search for available devices and select "Lofree EH113" (or similar name) from the list.
5. Once connected, the indicator light on the keypad will stop flashing and remain solid, or turn off, depending on the model.

2.3 Wired USB Connection

To use the keypad in wired mode, connect the provided USB cable from the keypad's Type-C port to an available USB port on your computer. The keypad will automatically switch to wired mode and begin charging if applicable.

Image: Connecting the Lofree EH113 numeric keypad via USB cable for wired operation and charging.

3. Operating Modes

The Lofree EH113 numeric keypad features two primary operating modes: Keyboard Mode and Calculator Mode.

3.1 Switching Modes

To switch between Keyboard Mode and Calculator Mode, press the [NUM/Calc] button located on the keypad. The LCD display will indicate the current mode.

3.2 Keyboard Mode

In Keyboard Mode, the keypad functions as a standard numeric input device for your connected computer or smart device. It is ideal for data entry in spreadsheets, documents, and other applications requiring numerical input.

3.3 Calculator Mode

In Calculator Mode, the keypad operates as a standalone 10-digit calculator. The LCD display will show calculations. It supports basic arithmetic operations and tax calculations.

Image: Illustration of the dual functionality of the Lofree EH113, highlighting both numeric keypad and calculator modes.

3.4 Video Demonstration: Calculator and Keypad Modes

4. Connectivity

The Lofree EH113 supports both Bluetooth wireless and USB wired connections, ensuring broad compatibility with various devices.

4.1 Bluetooth Compatibility

The keypad is compatible with all Bluetooth-enabled tablets, smartphones, and computers running Android, iOS, Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10, and older Windows versions (98/95/NT/ME).

4.2 USB Wired Connection

For devices without Bluetooth or for a stable, direct connection, use the provided USB cable. This also allows for simultaneous charging.

5. Keycap and Switch Customization

The Lofree EH113 features mechanical switches and retro-style round keycaps. The keycaps are designed for durability and resistance to fading and wear.

5.1 Backlight Control

The keypad includes a backlight feature. To toggle or change backlight effects, use the function key combination Fn + 5. Repeated presses will cycle through available backlight modes or turn the backlight off.

Image: Demonstrating the removal of a keycap, indicating the mechanical switch design.

6. Power Management

The keypad is equipped with energy-saving features to extend battery life.

6.1 Sleep Mode

• Low-Power Mode: The keypad enters a low-power mode after 20 seconds of inactivity.
• Smart Sleep Mode: If there is no operation for 10 minutes, the keypad will enter smart sleep mode.

To reactivate the keypad from any sleep mode, press any button.

6.2 Charging

Connect the keypad to a power source using the provided USB cable to charge the internal battery. The battery indicator on the LCD display will show charging status.

7. Specifications

8. Troubleshooting

8.1 Keypad Not Responding

• Ensure the keypad is powered on.
• Check battery level. If low, connect via USB for charging.
• For Bluetooth connection, ensure it is paired correctly and within range. Try re-pairing if necessary.
• For wired connection, ensure the USB cable is securely connected to both the keypad and the computer.
• If in sleep mode, press any key to wake it up.

8.2 Bluetooth Pairing Issues

• Make sure Bluetooth is enabled on your host device.
• Ensure the keypad is in pairing mode (indicator light flashing).
• Remove "Lofree EH113" from your device's Bluetooth list and attempt to pair again.
• Try restarting both the keypad and your host device.

8.3 Calculator Display Issues

• Ensure the keypad is in Calculator Mode (check the LCD display).
• Check battery level. Low battery can affect display performance.

9. Maintenance

9.1 Cleaning

To clean the keypad, use a soft, dry cloth. For stubborn dirt, a slightly damp cloth with mild soap can be used, ensuring no liquid enters the device. Avoid harsh chemicals or abrasive materials.

9.2 Storage

Store the keypad in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, ensure the battery is partially charged (around 50%) to maintain battery health.

10. Warranty and Support

For warranty information and technical support, please refer to the official Lofree website or contact your local distributor. Keep your purchase receipt as proof of purchase for warranty claims.