1. Introduction
Thank you for choosing the MMK Bluetooth Keyboard. This compact and versatile wireless keyboard is designed to enhance your productivity across various Bluetooth-enabled devices, including tablets, smartphones, and laptops running iOS, Android, or Windows operating systems. Its slim design, comfortable keys, and long-lasting battery make it an ideal companion for on-the-go typing.
This manual provides detailed instructions for setting up, operating, and maintaining your keyboard to ensure optimal performance.

The MMK Bluetooth Keyboard offers wide compatibility with iOS, Android, and Windows devices.
2. Package Contents
Please check the package for the following items:
- MMK Bluetooth Keyboard
- USB-A to USB-C Charging Cable
- User Manual
3. Product Overview
Familiarize yourself with the key components of your MMK Bluetooth Keyboard:

Location of CAPS indicator, Bluetooth indicator, Power indicator, ON/OFF switch, and Type-C charging port.
- CAPS Indicator: Lights up when Caps Lock is active.
- Bluetooth Indicator: Flashes during pairing, solid when connected.
- Power Indicator: Lights up when the keyboard is on, flashes when battery is low, solid during charging.
- ON/OFF Switch: Located on the side to power the keyboard on or off.
- Type-C Charging Port: Used to charge the keyboard.
4. Setup
4.1 Charging the Keyboard
Before first use, fully charge the keyboard. Connect the provided USB-A to USB-C cable to the keyboard's Type-C charging port and the other end to a USB power source (e.g., computer, wall adapter). The Power indicator will be solid during charging and turn off when fully charged.
4.2 Powering On/Off
To power on the keyboard, slide the ON/OFF switch to the 'ON' position. To power off, slide the switch to 'OFF'.
4.3 Bluetooth Pairing
Follow these steps to pair your keyboard with your device:
- Ensure the keyboard is charged and powered on.
- On your device (tablet, smartphone, laptop), go to Bluetooth settings and turn Bluetooth on.
- On the MMK keyboard, press and hold the Fn key and the Q key simultaneously. The Bluetooth indicator light will start flashing, indicating the keyboard is in pairing mode.
- On your device, search for available Bluetooth devices. You should see "Bluetooth Keyboard" or a similar name appear in the list.
- Select the keyboard from the list to connect. Once connected, the Bluetooth indicator light on the keyboard will stop flashing and remain solid for a few seconds before turning off to save power.

Visual guide for pairing the keyboard by pressing Fn + Q.
4.4 Selecting Operating System Mode
To optimize keyboard functions for your specific operating system, press the following key combinations:
- For iOS/iPadOS: Press Fn + Q
- For Android: Press Fn + W
- For Windows: Press Fn + E
5. Operation
5.1 Basic Typing
Once paired and the correct OS mode is selected, you can use the keyboard for typing as you would with a standard keyboard. The keys feature a stable scissor mechanism for a responsive and quiet typing experience.

Close-up of the comfortable keys and stable scissor mechanism for precise typing.
5.2 Using Shortcut Keys
The keyboard includes a full row of shortcut keys (F1-F12) for quick access to common functions. These functions may vary slightly depending on your operating system.

Illustration of the dedicated shortcut keys for one-tap access to popular functions.
- Esc: Home/Escape
- F1: Brightness Down
- F2: Brightness Up
- F3: Virtual Keyboard
- F4: Search
- F5: Screenshot
- F6: Lock Screen
- F7: Previous Track
- F8: Play/Pause
- F9: Next Track
- F10: Mute
- F11: Volume Down
- F12: Volume Up
5.3 Auto-Sleep Function
To conserve battery, the keyboard will automatically enter sleep mode after a period of inactivity. To wake it up, simply press any key. It may take a moment to re-establish connection with your device.
6. Maintenance
6.1 Cleaning
To clean your keyboard, gently wipe the surface with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials. Ensure the keyboard is powered off before cleaning.
6.2 Storage
When not in use for extended periods, store the keyboard in a cool, dry place. It is recommended to fully charge the keyboard before storing and to recharge it every few months to maintain battery health.
7. Troubleshooting
If you encounter issues with your MMK Bluetooth Keyboard, please refer to the following common solutions:
- Keyboard not connecting:
- Ensure the keyboard is powered on and fully charged.
- Verify that Bluetooth is enabled on your device.
- Make sure the keyboard is in pairing mode (Fn + Q, Bluetooth indicator flashing).
- Forget the keyboard from your device's Bluetooth settings and attempt to re-pair.
- Restart both your device and the keyboard.
- Keys not responding or missing input:
- Check the battery level and recharge if necessary.
- Ensure the keyboard is within the 8-meter operating range of your device.
- If the keyboard has entered auto-sleep mode, press any key to wake it up. Allow a few seconds for reconnection.
- Verify that the correct operating system mode (Fn + Q/W/E) is selected for your device.
- Short battery life:
- Ensure the keyboard is fully charged before use.
- The keyboard features an auto-sleep mode to conserve power; ensure it's not being woken up unnecessarily.
- Avoid extreme temperatures, which can affect battery performance.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | MMK |
| Model | KB281 |
| Connectivity Technology | Bluetooth |
| Compatible Devices | iOS, Android, macOS, Windows devices (e.g., iPad 10th/9th/8th Gen, iPad Air 5th/4th Gen, iPad Pro 13/12.9/11 inch, Samsung Galaxy Tab) |
| Special Feature | Silent keys, Scissor Mechanism |
| Color | White |
| Material | Plastic |
| Included Components | USB Cable |
| Power Source | Rechargeable Battery |
| Number of Keys | 78 |
| Keyboard Layout | QWERTY (US English) |
| Dimensions (Approx.) | 11.18 in (28.4 cm) x 4.72 in (12 cm) x 0.2 in (0.47 cm) |

The keyboard's thin and lightweight design, with approximate dimensions.
9. Warranty and Support
The MMK Bluetooth Keyboard comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects and ensures reliable performance under normal use.
For technical support, warranty claims, or any questions regarding your product, please contact MMK customer service through the retailer where you purchased the product. Please have your purchase receipt and product model number (KB281) ready when contacting support.


