Introducción
Thank you for choosing the UGREEN M785DR Wireless Trackball Mouse. This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your device. Please read this manual thoroughly before use to ensure optimal performance and longevity of your trackball mouse.

Imagen: Más alláview of the UGREEN M785DR Wireless Trackball Mouse, highlighting its ergonomic design, trackball, and various buttons. Icons indicate Bluetooth & 2.4G connectivity, USB-C charging, 5 DPI levels, 4D scroll wheel, silent operation, customizable buttons, and simultaneous connection to up to 3 devices.
Producto terminadoview
Familiarize yourself with the components and controls of your UGREEN M785DR Trackball Mouse.

Image: Detailed diagram illustrating the various buttons and ports on the UGREEN M785DR Trackball Mouse. Labels include Left button, Scroll wheel, Right button, DPI toggle button, Connection toggle button, USB-C port for charging, Power button, Trackball, Back button, Forward button, Battery/Mode indicator, and the location of the USB receiver.
Componentes clave:
- Bola de seguimiento: For precise cursor control with your thumb.
- Botones izquierdo/derecho: Funciones estándar de clic del mouse.
- Rueda de desplazamiento: 4D scrolling for vertical and horizontal navigation.
- Botones Atrás/Adelante: For quick navigation in web navegadores y file exploradores.
- Botón de alternancia de DPI: Ajusta la sensibilidad del cursor.
- Connection Toggle Button: Switches between 2.4G and Bluetooth connections.
- Indicador de batería/modo: Muestra el estado de la batería y el modo de conexión.
- Puerto de carga USB-C: Para recargar la batería interna.
- Botón de encendido: Enciende o apaga el ratón.
- Receptor USB: Stored inside the mouse for 2.4G wireless connection.
Configuración
1. Cargar el ratón
Before initial use, ensure the mouse is fully charged. A USB-A to USB-C charging cable is included.
- Connect the USB-C end of the charging cable to the mouse's USB-C port.
- Conecte el extremo USB-A a una fuente de alimentación (por ejemplo, puerto USB de computadora, adaptador de pared USB).
- The battery/mode indicator light will show the charging status. It takes approximately 1.5-2 hours for a full charge.

Image: The UGREEN M785DR mouse connected via a USB-C cable to a laptop for charging. The image indicates the charging process and fully charged states with color codes.
2. Conexión del ratón
The UGREEN M785DR supports dual-mode connectivity: 2.4G wireless via USB receiver and Bluetooth. It can connect to up to three devices simultaneously.
2.1. Conexión inalámbrica 2.4G
- Locate the USB receiver inside the mouse's bottom compartment.
- Conecte el receptor USB a un puerto USB disponible en su computadora.
- Encienda el mouse usando el botón de encendido.
- Press the connection toggle button until the indicator light shows the 2.4G mode (usually a specific color or blink pattern). The mouse should connect automatically.
2.2. Conexión Bluetooth
The mouse supports two Bluetooth channels (BT1 and BT2).
- Encienda el mouse usando el botón de encendido.
- Press the connection toggle button to select either BT1 or BT2 mode. The indicator light will blink rapidly, indicating pairing mode.
- On your device (PC, Mac, tablet, etc.), go to Bluetooth settings and search for new devices.
- Select "UGREEN M785DR" from the list of available devices to pair.
- Una vez emparejado, la luz indicadora dejará de parpadear y permanecerá fija durante unos segundos.

Image: The UGREEN M785DR mouse positioned between a monitor, laptop, and tablet, illustrating its ability to connect to three devices simultaneously via Bluetooth (BT1, BT2) and 2.4G wireless. Compatible operating systems are listed below the image.
3. Cambiar entre dispositivos conectados
To switch between connected devices, simply press the connection toggle button on the mouse. The indicator light will change to reflect the active connection mode (2.4G, BT1, or BT2).
4. Compatibilidad
The UGREEN M785DR is compatible with a wide range of operating systems:
- Ventanas
- macOS
- Linux
- Androide
- Sistema operativo Chrome
Instrucciones de funcionamiento
1. Diseño y uso ergonómico
The vertical ergonomic shape and thumb-controlled trackball are designed to reduce forearm rotation and wrist strain, promoting a more natural hand posture during extended use. Cursor movement is achieved by rolling the trackball with your thumb, eliminating the need to move the entire mouse.

Image: A comparison showing the hand posture with a conventional mouse (requiring wrist movement) versus the UGREEN M785DR trackball mouse (enabling intuitive thumb operation without moving the mouse, reducing wrist twisting).
2. Ajuste de DPI
The mouse features 5 adjustable DPI levels to suit various tasks and preferences. Press the DPI toggle button to cycle through the sensitivity settings.
- 400 ppp: One blink of the indicator light.
- 800 ppp: Two blinks of the indicator light.
- 1200 ppp: Three blinks of the indicator light.
- 1600 ppp: Four blinks of the indicator light.
- 2000 ppp: Five blinks of the indicator light.

Image: Diagram illustrating the 5 DPI levels (400, 800, 1200, 1600, 2000) and their corresponding indicator light blinks. A low battery warning is also shown.
3. 4D Hyper-Fast Scroll Wheel
The scroll wheel supports both vertical and horizontal scrolling. It also features speed switching for efficient navigation through long documents or wide spreadsheets. Simply tilt the scroll wheel left or right for horizontal scrolling.
4. Botones personalizables
The product buttons can be customized to assign frequently used functions (e.g., copy, paste, task switching). This requires downloading and installing the corresponding software from the UGREEN official websitio.
5. Space-Saving Operation
Since the mouse does not need to be moved, it is ideal for small desks, cluttered workspaces, or even use on your lap. It operates reliably on almost any surface without requiring a mouse pad.

Image: Three scenarios demonstrating the UGREEN M785DR mouse being used in limited spaces: on a train tray table, on a small desk, and resting on a user's lap, highlighting its versatility.
Mantenimiento
Limpieza del trackball
For optimal performance and smooth tracking, regularly clean the trackball. Dust and debris can accumulate and affect its movement.
- Apague el ratón.
- Empuje suavemente el trackball desde la parte inferior del mouse.
- Limpie el trackball con un paño suave que no suelte pelusa.
- Use a cotton swab or a small brush to clean the inner socket where the trackball rests, removing any accumulated dust or debris.
- Vuelva a insertar el trackball en su zócalo.
Monthly cleaning is recommended to maintain smooth and responsive tracking.
Solución de problemas
Problemas comunes y soluciones:
- El ratón no responde:
- Asegúrese de que el mouse esté encendido.
- Verifique el nivel de batería; recárguela si es necesario.
- Para una conexión 2.4G, asegúrese de que el receptor USB esté bien conectado y que el mouse esté en modo 2.4G.
- For Bluetooth connection, ensure Bluetooth is enabled on your device and the mouse is correctly paired and in the selected BT mode (BT1/BT2). Try re-pairing if necessary.
- Intente conectarse a un puerto o dispositivo USB diferente para descartar problemas de puerto/dispositivo.
- El movimiento del cursor es errático o no es fluido:
- Clean the trackball and its socket as described in the Maintenance section.
- Adjust the DPI sensitivity using the DPI toggle button.
- Advertencia de batería baja:
- The red indicator light will blink for approximately 10 seconds when the battery voltage drops. Recharge the mouse promptly.
- Los botones no funcionan correctamente:
- If buttons are customized, ensure the customization software is running and configured correctly.
- Test the mouse on another device to determine if the issue is with the mouse or the host device's settings.
Presupuesto
| Marca | UGREEN |
| Número de modelo | 85892 (M785DR) |
| Tecnología de conectividad | Bluetooth, conexión inalámbrica 2.4G |
| Tecnología de detección de movimiento | Bola de seguimiento |
| Número de botones | 8 |
| Niveles de DPI | 400, 800, 1200, 1600, 2000 (ajustable) |
| Batería | 500mAh Rechargeable (1 Nonstandard Battery included) |
| Puerto de carga | USB-C |
| Orientación de la mano | Ambidextro |
| Dispositivos compatibles | Ordenador personal |
| Sistema operativo | Windows, macOS, Linux, Android, ChromeOS |
| Peso del artículo | 155 gramos |

Image: A size guide for the UGREEN M785DR mouse, comparing it to small, medium, and large hand sizes. Dimensions of the mouse (6.7cm width, 12cm length, 6.5cm height) are also provided, indicating it is specifically designed for medium to large hands.
Garantía y soporte
Información de garantía
The UGREEN M785DR Wireless Trackball Mouse comes with a Garantía del fabricante de 2 añoConserve su comprobante de compra para reclamaciones de garantía.
Atención al cliente
For further assistance, technical support, or to download customization software, please visit the official UGREEN websitio o póngase en contacto con el servicio de atención al cliente de UGREEN.
Websitio: www.ugreen.com