1. Introducció
This manual provides instructions for the proper setup, operation, and maintenance of your Decdeal J900 USB Wired Gaming Mouse. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.
2. Característiques del producte
- DPI ajustable: Supports 800/1600/2400/3200/4800/6400 DPI settings for precise control.
- Retroil·luminació RGB: Features 7 programmable RGB backlight modes for customizable visual effects.
- Disseny ergonòmic: Engineered for comfortable hand feel, reducing fatigue during extended use.
- Honeycomb Hollow Design: Promotes ventilation and cooling, preventing hot hands and palms.
- Plug and Play: USB powered, no additional drivers required for operation.
- Interruptors duradors: Equipped with switches rated for 20 million clicks.

Figura 2.1: Pro lateralfile of the Decdeal J900 mouse, detailing its ergonomic design, maximum 6400 DPI, customizable RGB lighting, 5G laser sensor, and 1000Hz polling rate for responsive performance.
3. Configuració
- Unpack the Decdeal J900 USB Wired Gaming Mouse from its packaging.
- Localitza un port USB disponible al teu ordinador (de sobretaula o portàtil).
- Inseriu el connector USB del ratolí al port USB.
- The mouse is plug-and-play; no additional software or drivers are required for basic functionality. The operating system will automatically detect and install the necessary components.
4. Instruccions de funcionament
4.1. Ajust de DPI
The Decdeal J900 mouse features six adjustable DPI levels to suit various tasks and preferences. The DPI can be cycled through using the dedicated DPI button located on the top of the mouse, behind the scroll wheel.
- Press the DPI button to cycle through the available settings: 800, 1600, 2400, 3200, 4800, and 6400 DPI.
- Each DPI level may correspond to a specific LED color indicator (refer to Figure 4.1 for details).

Figure 4.1: This diagram shows the six adjustable DPI levels (800, 1600, 2400, 3200, 4800, 6400) of the Decdeal J900 mouse, indicating how to cycle through them.
4.2. Modes de retroiluminació RGB
The mouse offers 7 programmable RGB backlight modes. These modes can be changed using the RGB light mode switch located on the underside of the mouse.
- Flip the mouse over to locate the RGB light mode switch.
- Press the switch to cycle through different lighting effects, including Rainbow, DPI Color Breath, Keep Light On, Close, Random Leisure, Random Sleep, and Random Sport modes.

Figure 4.2: A hand is shown pressing the dedicated RGB light mode switch located on the underside of the Decdeal J900 mouse, demonstrating how to change lighting effects.

Figure 4.3: This image illustrates the adjustable DPI settings and various LED light modes available on the Decdeal J900 mouse.
5. Manteniment
To ensure the longevity and optimal performance of your Decdeal J900 mouse, follow these maintenance guidelines:
- Neteja: Feu servir un drap suau i sec per netejar la superfície del ratolí. Per a la brutícia persistent, netegeu lleugerament.amp es pot fer servir un drap, assegurant-se que no entri humitat als components interns. Eviteu productes químics agressius o netejadors abrasius.
- Cura del cable: Avoid bending or twisting the USB cable excessively. Do not pull the cable to disconnect the mouse; always grasp the USB connector.
- Emmagatzematge: Quan no l'utilitzeu, guardeu el ratolí en un entorn net i sec, allunyat de temperatures extremes i de la llum solar directa.
6. Solució De Problemes
If you encounter issues with your Decdeal J900 mouse, refer to the following common solutions:
- El ratolí no respon:
- Ensure the USB cable is securely connected to your computer's USB port.
- Prova de connectar el ratolí a un port USB diferent.
- Reinicieu l'ordinador.
- Proveu el ratolí en un altre ordinador per determinar si el problema és del ratolí o de l'ordinador.
- Els DPI no canvien:
- Assegureu-vos que esteu prement el botó d'ajust de DPI correcte.
- Check if the mouse is properly connected and powered.
- RGB Lights Not Working/Changing:
- Verify the RGB light mode switch on the underside of the mouse is being pressed correctly.
- Ensure the mouse is receiving power via the USB connection.
7. Especificacions
| Marca | Decdeal |
| Model | J900 |
| Tecnologia de connectivitat | Cable USB |
| Tecnologia de detecció de moviment | Òptic |
| DPI ajustable | 800/1600/2400/3200/4800/6400 |
| Llum de fons | RGB (7 modes) |
| Orientació de la mà | Mà dreta |
| Dimensions del producte | 15 x 10 x 5 cm |
| Pes de l'article | 150 g |
| Sistemes operatius compatibles | Linux, Windows 7, Windows XP (i versions més recents) |

Figure 7.1: An exploded diagram of the Decdeal J900 mouse, revealing its internal components such as the left button, Gundam 6400DPI sensor, transparent roller, ten-million-life microswitch, PCB circuit board, tail logo, RGB marquee glow ring, hollow base, and UPE foot sticker.
8. Garantia i Suport
The Decdeal J900 USB Wired Gaming Mouse comes with a standard manufacturer's warranty. For specific warranty terms, duration, and support inquiries, please refer to the warranty card included with your product or contact Decdeal customer service directly. Keep your purchase receipt as proof of purchase for warranty claims.