Model: WKB-1243 | Brand: LMP
The LMP WKB-1243 is a full-size wireless Bluetooth keyboard designed for seamless integration with multiple devices. Featuring a multi-host function, it allows connection to up to four different devices, including Mac, iOS, and Windows PCs, with quick switching capabilities. This keyboard includes a 110-key (ISO) layout with a numeric keypad and laser-engraved keycaps for durability. Its anodized aluminum top cover provides a robust and elegant design. The built-in rechargeable lithium-ion battery offers extended usage, and charging is facilitated via the included USB-C cable.
Key features include:
Please ensure all items are present in the package:
Before initial use, fully charge the keyboard. Connect the supplied USB-C cable to the keyboard's USB-C port and the other end to a 5V USB-C power source (e.g., a Mac's Thunderbolt 3 port or a standard USB-C charger). The Caps Lock LED will indicate the battery status. The USB-C cable is for charging only and does not support data transmission.
The LMP WKB-1243 keyboard supports connecting to up to four different devices simultaneously via Bluetooth. Follow these steps to pair your devices:

Figure 1: Multi-Host Connection Diagram. This diagram illustrates how the LMP WKB-1243 keyboard can be simultaneously connected to multiple devices, such as a laptop, desktop monitor, Mac mini, and iPad, allowing users to switch between them using the Fn key combined with the numeric keypad keys 1 through 4.
Note: FileVault is supported. However, system startup with key combinations (e.g., selecting the operating system by pressing the Alt key at startup) is not supported with this keyboard.
To switch between your paired devices, simply press the Fn key simultaneously with the corresponding host key (1, 2, 3, or 4) on the numeric keypad. The keyboard will instantly connect to the selected device.
The keyboard features typical Mac-specific function keys for controlling brightness, media playback, volume, etc. These functions are activated directly. To use the standard F1-F19 functions instead of the special characters, press the Fn key simultaneously with the Esc key. This toggles the function key behavior.
The Caps Lock LED indicates when Caps Lock is active. It also serves as a battery status indicator. When the battery is low, the LED may blink or change color (refer to specific behavior in troubleshooting if needed).

Figure 2: Top View of the LMP WKB-1243 Keyboard. This image displays the complete layout of the keyboard, including the main QWERTY section, the dedicated numeric keypad, and the row of function keys at the top.

Figure 3: Angled Front View. This perspective showcases the keyboard's slim design and the ergonomic angle of the keys.

Figure 4: Side Profile. This image provides a clear view of the keyboard's thin side profile and the subtle slope of the key layout.

Figure 5: Rear View with USB-C Port. This view highlights the placement of the USB-C charging port on the back edge of the keyboard.

Figure 6: Keyboard in a Multi-Device Setup. This image shows the LMP WKB-1243 keyboard as part of a comprehensive workstation, connected to multiple displays and devices, illustrating its multi-host capability in a practical environment.
| Problem | Possible Cause | Solution |
|---|---|---|
| Keyboard does not turn on. | Battery is depleted. | Connect the keyboard to a power source using the USB-C cable and allow it to charge for at least 30 minutes before attempting to turn it on. |
| Cannot pair the keyboard with a device. | Keyboard not in pairing mode; Bluetooth interference; device Bluetooth off. |
|
| Keyboard disconnects frequently. | Low battery; too far from device; interference. |
|
| Keys are not responding or typing incorrectly. | Software issue; physical obstruction; incorrect layout setting. |
|
| Feature | Detail |
|---|---|
| Model Number | WKB-1243 (24557) |
| Connectivity Technology | Bluetooth |
| Number of Keys | 110 (ISO Layout) |
| Keyboard Description | Full Size, 3-Zone with Numeric Keypad |
| Special Feature | Multi-Host Function (up to 4 devices) |
| Compatible Devices | Mac, iOS devices, Windows PCs (Bluetooth compatible) |
| Material | Aluminum (top cover) |
| Color | Space Gray / Silver |
| Battery Type | Lithium-Polymer (rechargeable) |
| Charging Port | USB-C (charging only) |
| Included Components | USB-C Cable |
| Country of Origin | China |
For warranty information and technical support, please refer to the official LMP website or contact your local retailer. Keep your proof of purchase for warranty claims.
For further assistance, you may visit the LMP support page or contact their customer service directly. Contact details are typically available on the manufacturer's official website.
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