Introducción
The Docooler MK321BT is a versatile 3-key mini keypad designed for various applications, including gaming, office work, and multimedia control. It features a dual-mode connection (USB and Bluetooth 4.0) for flexible use and mechanical blue switches for a tactile and responsive experience. The keys are fully customizable to perform a wide range of functions, enhancing productivity and control.

Image: The Docooler MK321BT 3-Key Mini Keypad, available in black and white, showcasing its customizable functions such as Keyboard, Mouse, Multimedia, Character String, Game, and Macro Definition.
Contenido del paquete
Por favor revise el paquete para ver los siguientes artículos:
- 1 x Docooler MK321BT Mini Keypad
- 1 cable de datos USB tipo C
- 1 x Manual de usuario (este documento)
Producto terminadoview
Familiarize yourself with the components and features of your mini keypad.

Image: A detailed breakdown of the keypad's features, including the front interface with power switch and USB Type-C port, a side Type-C interface, visible blue mechanical switches, and anti-slip foot pads on the bottom.
- Interfaz frontal: Features a power switch (ON/OFF), a USB Type-C port for wired connection and charging, and a 'connect' button for Bluetooth pairing.
- Side Interface: An additional Type-C interface for convenient access.
- Blue Switch Buttons: Equipped with mechanical blue switches, providing a strong tactile feedback and crisp sound.
- Almohadillas antideslizantes para los pies: Located at the bottom of the keypad to ensure stability during use.
Configuración
Conexión por cable
- Connect the provided USB Type-C data cable to the front USB Type-C port on the keypad.
- Conecte el otro extremo del cable USB a un puerto USB disponible en su computadora.
- Ensure the power switch on the front interface is in the 'ON' position. The keypad will be recognized automatically by your system.
Conexión inalámbrica (Bluetooth)
- Ensure the power switch on the front interface is in the 'ON' position.
- Press the 'connect' button on the front interface to activate Bluetooth pairing mode. The indicator light will flash.
- On your device (computer, tablet, mobile phone), open Bluetooth settings and search for new devices.
- Select 'MK321BT' (or similar name) from the list of available devices to pair.
- Once paired, the indicator light on the keypad will stop flashing, indicating a successful connection.

Image: The Docooler MK321BT Mini Keypad, illustrating its USB+BT4.0 dual-mode connection for easy switching between wired and wireless use.
Compatibilidad del sistema
This keypad is compatible with various operating systems. Key definition setting software is provided for Windows systems.
- Ventanas: Fully compatible, including key customization software.
- Linux/Mac: If you use Linux or Mac, you need to set up the key definitions on a Windows system first. After configuration, the keypad can be plugged into your Linux or Mac device and used with the saved settings.

Image: Visual representation of the keypad's system compatibility across various devices including laptops, desktop computers, tablets, and mobile phones.
Instrucciones de funcionamiento
Personalización de claves
The keys on your Docooler MK321BT Mini Keypad can be customized to perform a variety of functions. Use the dedicated software (available for Windows) to assign functions such as:
- Keyboard functions (e.g., specific keys, shortcuts)
- Mouse functions (e.g., clicks, scroll)
- Multimedia functions (e.g., play/pause, volume control)
- Character string functions (e.g., inputting predefined text)
- Game functions (e.g., specific in-game actions)
- Macro definition functions (e.g., executing a sequence of commands)
Cambiar modos de conexión
The keypad supports both USB wired and Bluetooth wireless connections. You can easily switch between these modes as needed. When the USB cable is connected, the keypad operates in wired mode. When disconnected, it will attempt to connect via Bluetooth if previously paired.
Nota de funcionamiento importante
Please note that the one-click open/start function cannot be used when the keypad is operating in wireless (Bluetooth) mode. This function is only available in wired mode.

Image: A close-up of a hand interacting with the keypad, emphasizing the comfortable ergonomic design of the buttons and the stated 50 million times button lifespan.
Mantenimiento
To ensure the longevity and optimal performance of your Docooler MK321BT Mini Keypad, follow these simple maintenance guidelines:
- Limpieza: Utilice un paño suave y seco para limpiar la superficie del teclado. Para la suciedad difícil, utilice un paño ligeramente seco.amp Se puede usar un paño, pero asegúrese de que no entre líquido en el dispositivo. No utilice productos químicos agresivos ni limpiadores abrasivos.
- Almacenamiento: Guarde el teclado en un lugar fresco y seco, alejado de la luz solar directa y de temperaturas extremas.
- Manejo: Avoid dropping the keypad or subjecting it to strong impacts, as this can damage the internal components or mechanical switches.
Solución de problemas
If you encounter issues with your mini keypad, refer to the following common problems and solutions:
- El teclado no responde:
- Asegúrese de que el interruptor de encendido esté en la posición "ENCENDIDO".
- If using wired mode, check if the USB cable is securely connected to both the keypad and your computer. Try a different USB port.
- If using wireless mode, ensure the keypad is paired correctly via Bluetooth. Try re-pairing the device.
- Check the battery level if in wireless mode. Charge the keypad if the battery is low.
- Problemas de conexión Bluetooth:
- Asegúrese de que Bluetooth esté habilitado en su dispositivo host.
- Acerque el teclado a su dispositivo para descartar problemas de alcance.
- Remove the keypad from your device's Bluetooth list and attempt to pair again.
- Restart both the keypad (turn off and on) and your host device.
- Keys not performing assigned functions:
- Verify that the key customization software was used correctly and settings were saved.
- If using Linux/Mac, ensure the customization was performed on a Windows PC and saved to the keypad's onboard memory.
- Remember that the one-click open/start function is not available in wireless mode.
Presupuesto
Technical specifications for the Docooler MK321BT Mini Keypad:

Image: A table detailing the product parameters and a diagram illustrating the dimensions (length, width, height) of the Docooler MK321BT Mini Keypad.
| Especificación | Detalle |
|---|---|
| Tipo | Mini teclado |
| Modelo | MK321BT |
| Número de clave | 3 |
| Modo de conexión | USB + Bluetooth 4.0 |
| Interruptor mecánico | Blue switch |
| Tipo de interfaz | Tipo C |
| Vida útil | 50 millones de veces |
| Capacidad de la batería | 140 mAh |
| Vol de trabajotage / Actual | 5 V a 15 mA |
| Tamaño del artículo | 7.5 * 3.7 * 2.8 cm (2.95 * 1.46 * 1.1 pulgadas) |
| Peso del artículo | Aprox. 29 g (1.02 onzas) |
Garantía y soporte
For warranty information or technical support, please refer to the documentation provided at the time of purchase or contact Docooler customer service through their official websitio o el minorista donde se compró el producto.