Introducción
This manual provides detailed instructions for the Keychron K3 Version 2 Ultra-Slim Mechanical Keyboard. Please read this manual thoroughly before using the keyboard to ensure proper setup and operation. The Keychron K3 is a compact 75% layout ultra-slim wireless mechanical keyboard designed for productivity and a tactile typing experience.

Image: Keychron K3 keyboard integrated into a multi-device workspace.
Configuración
Contenido del paquete
- 1 x Fully Assembled Keychron K3 Keyboard
- 1 x USB-A to USB Type-C Cable
- 1 x Extractor de teclas
- Extra keycaps for Windows and Mac operating systems
Modos de conectividad
The Keychron K3 supports both wireless Bluetooth 5.1 and wired USB Type-C connections.

Image: Visual guide for connecting the Keychron K3 via USB or Bluetooth.
Conexión Bluetooth:
- Locate the mode switch on the side of the keyboard. Slide the switch to the Bluetooth posición.
- Mantenga pulsado el Fn + 1 keys simultaneously until the Bluetooth indicator light flashes repeatedly, indicating pairing mode.
- On your device (laptop, PC, tablet, or phone), enable Bluetooth, search for "Keychron K3", and connect.
- The keyboard can connect to up to 3 devices. Use Fn + 1, Fn + 2, o Fn + 3 para cambiar entre dispositivos emparejados.
Note: Keep the distance between the keyboard and the device within reasonable limits to minimize signal interference.
Conexión por cable:
- Locate the mode switch on the side of the keyboard. Slide the switch to the Cable posición.
- Conecte el cable USB tipo C provisto desde el teclado al puerto USB de su computadora.
- The keyboard will be recognized automatically as a plug-and-play device.
Compatibilidad del sistema operativo
The Keychron K3 is compatible with both Mac and Windows operating systems. It includes extra keycaps for both systems.

Image: Side switches for selecting operating system layout and connection type.
Use the dedicated switch on the side of the keyboard to select between Ganar/Android y Mac/iOS layouts. Ensure the correct layout is selected for optimal functionality.
If the keyboard layout does not match your device exactly, consider updating the keyboard's firmware from the official Keychron websitio.
Operación
Experiencia de mecanografía
The Keychron K3 features low-profile Keychron mechanical switches (Red Switch variant) which are 40% slimmer than conventional switches. This design results in a shorter pre-travel and total travel distance, allowing for faster input and feedback.

Image: Low-profile ABS keycaps on the Keychron K3.
Control de luz de fondo
The keyboard is equipped with a white LED backlight. You can adjust the brightness and switch between various lighting effects using the dedicated function keys.

Image: White LED backlighting illuminates the keys and low-profile red mechanical switches.
- Prensa Fn + F5 para disminuir el brillo de la luz de fondo.
- Prensa Fn + F6 para aumentar el brillo de la luz de fondo.
- Prensa Fn + F4 para recorrer diferentes efectos de luz de fondo.
Teclas multimedia
The K3 includes all necessary Mac multimedia keys and is also compatible with Windows multimedia functions. These keys are typically accessed by pressing the Fn key in combination with the top row function keys (F1-F12).
- Fn + F1:Disminuir el brillo de la pantalla
- Fn + F2:Aumentar el brillo de la pantalla
- Fn + F7: Pista anterior
- Fn + F8: Reproducir/Pausa
- Fn + F9: Siguiente pista
- Fn + F10: Silenciar
- Fn + F11: Bajar volumen
- Fn + F12: Sube el volumen
Mantenimiento
Limpieza del teclado
To maintain optimal performance and appearance, regularly clean your Keychron K3 keyboard.
- Teclas: Utilice el extractor de teclas proporcionado para retirar las teclas con cuidado. Límpielas con un paño suave.amp Paño y jabón suave si es necesario. Asegúrese de que estén completamente secos antes de volver a colocarlos.
- Cuerpo del teclado: Wipe the aluminum body and plastic bottom frame with a soft, lint-free cloth. For stubborn dirt, a slightly damp Se puede utilizar un paño. Evitar la humedad excesiva.
- Interruptores: Use compressed air to remove dust and debris from around and under the switches.
Información de la batería
The Keychron K3 is powered by a rechargeable battery. The battery life can last up to 34 hours on the lowest brightness setting.
- Cargando: Connect the keyboard to a power source using the USB Type-C cable. The charging indicator light will show the charging status.
- Conservación de la batería: To prolong battery life, turn off the backlight when not needed and switch the keyboard to wired mode when possible.
Solución de problemas
Problemas de conectividad
- Bluetooth no se conecta:
- Ensure the keyboard's mode switch is set to Bluetooth.
- Verifique que el teclado esté en modo de emparejamiento (Fn + 1/2/3 brillante).
- Verifique la configuración de Bluetooth de su dispositivo y asegúrese de que sea detectable.
- Try forgetting the device on your computer and re-pairing.
- Asegúrese de que la batería del teclado esté cargada.
- La conexión por cable no funciona:
- Ensure the keyboard's mode switch is set to Cable.
- Pruebe con un puerto USB diferente en su computadora.
- Pruebe con un cable USB tipo C diferente.
Las teclas no responden
- Ensure the keyboard is properly connected (Bluetooth or wired).
- Check if the correct operating system layout is selected (Mac/iOS or Win/Android).
- Restart the keyboard by cycling the power switch off and on.
- If specific keys are not working, try removing the keycap and clearing any debris around the switch.
Problemas de retroiluminación
- Ensure the backlight is not turned off or set to the lowest brightness. Use Fn + F6 para aumentar el brillo.
- If the backlight is inconsistent, ensure the keyboard battery is sufficiently charged.
Presupuesto

Image: Keychron K3 75% compact layout with dimensions.

Image: Ultra-slim body design and low-profile switch comparison.

Image: Detailed specifications for the Keychron Low Profile Mechanical Red Switch.
| Característica | Detalle |
|---|---|
| Marca | Clavechrono |
| Número de modelo | K3A1 |
| Tecnología de conectividad | Bluetooth 5.1, USB Type-C wired |
| Número de llaves | 84 |
| Tipo de interruptor | Baja Profile Gateron Mechanical - Red |
| Contraluz | LED blanco |
| Dispositivos compatibles | Portátil, PC, teléfono inteligente, tableta |
| Sistema operativo compatible | Sistema operativo Mac, Windows |
| Dimensiones del producto (L x An x Al) | 12.05" x 4.57" x 0.83" |
| Peso del artículo | 500 gramos |
| Material del recinto | Acrilonitrilo Butadieno Estireno, Aluminio |
| Battery Life (lowest brightness) | Hasta 34 horas |
Garantía y soporte
Información de garantía
The Keychron K3 Version 2 keyboard comes with a Garantía limitada de 1 años Del fabricante. Esta garantía cubre defectos de materiales y mano de obra en condiciones normales de uso. Conserve su comprobante de compra para reclamaciones de garantía.
For detailed warranty terms and conditions, please refer to the official Keychron websitio o comuníquese con su servicio de atención al cliente.
Atención al cliente
For further assistance, technical support, or warranty inquiries, please visit the official Keychron websitio:
You may also find helpful resources, FAQs, and firmware updates on their support pages.