Introdución
Thank you for choosing the ProtoArc Wireless Number Pad EK04 N. This ergonomic numeric keypad is designed to enhance your productivity and comfort with its versatile connectivity options and thoughtful design. Please read this manual carefully to ensure proper use and to maximize your experience with the product.

Image: The ProtoArc Wireless Number Pad EK04 N, featuring a full 34-key layout and integrated wrist rest, positioned on a wooden desk alongside a laptop.
Lista de embalaxe
Asegúrate de que todos os elementos estean presentes no paquete:
- Number Pad * 1
- Receptor USB * 1
- Cable de carga tipo C * 1
- Manual de usuario * 1

Image: The ProtoArc EK04 N numeric keypad, USB receiver, and Type-C charging cable laid out next to the product box and user manual.
Características do produto
- 34 Keys Full-Size Number Pad: Includes calculator key, PgUp, PgDn, Insert, Delete, Backspace, etc.
- Conectividade dual: Supports Bluetooth 5.1 and 2.4G wireless connection, allowing connection to 2 devices simultaneously.
- Hard Palm Rest: Features a leather surface for extended typing comfort and wrist support. (Note: Not removable or soft cushioned).
- Baixo Profile Scissor-switch Keys: Provides a quiet and responsive typing experience.
- Carga USB-C: Built-in rechargeable lithium battery with 250 hours of standby time after 2 hours of full charge.
- Ampla compatibilidade: Compatible with Windows 8, 10, 11 and Mac OS.
Key Features Visuals

Image: The EK04 N numeric keypad wirelessly connected to a laptop via 2.4G and a tablet via Bluetooth, demonstrating dual device connectivity.

Image: A hand comfortably resting on the hard, flat palm rest with a leather surface, highlighting the ergonomic design for wrist support.

Image: The numeric keypad shown with its adjustable tilt legs, offering two different angles for comfortable use while sitting or standing.

Image: A detailed diagram illustrating the full 34-key layout of the number pad, including special function keys like Insert, Home, PgUp, PgDn, NumLK, Delete, End, and arrow keys.

Imaxe: Primeiro plano view revealing the low-profile scissor-switch mechanism beneath a keycap, indicating quiet and comfortable typing.

Image: The ProtoArc EK04 N numeric keypad being charged via its USB-C port, with an indicator showing 2-3 hours for full charge and 100 days standby time.
Configuración e conexión
The EK04 N offers two connection methods: 2.4G USB and Bluetooth. You can connect up to two devices simultaneously.
Conexión USB 2.4G
- Turn the power switch on the number pad to ON.
- Press the 2.4G indicator button (usually marked with a Wi-Fi-like icon) until the indicator light illuminates.
- Saca o receptor USB da parte inferior do teclado numérico.
- Plug the USB receiver into your computer's USB port. The number pad should connect automatically.

Image: A quick start guide diagram illustrating the steps to connect the EK04 N via 2.4G USB, including turning on power, pressing the 2.4G button, inserting the USB receiver into a computer, and confirming connection.
Conexión Bluetooth
- Turn the power switch on the number pad to ON.
- Press and hold the Bluetooth channel indicator button (usually marked with a Bluetooth icon) for 3-5 seconds until the indicator light flashes rapidly (Bluetooth pairing mode).
- Enable Bluetooth on your device (computer, tablet, or laptop). Busca and select "ProtoArc EK04 N" to complete pairing and connection.

Image: A quick start guide diagram illustrating the steps to connect the EK04 N via Bluetooth, including turning on power, holding the Bluetooth button for 3 seconds, and pairing with a device.
Cambio entre dispositivos
After channels are connected, press the corresponding channel button (2.4G or Bluetooth) to switch between the two connected devices.
Instrucións de funcionamento
The EK04 N numeric keypad provides a full range of numeric and function keys for efficient data entry and navigation.
Funcións clave
| Chave | Función Windows | Función Mac OS |
|---|---|---|
| 2.4G Channel Button | Canle 2.4G | / |
| Bluetooth Channel Button | Canle Bluetooth | Canle Bluetooth |
| Calculator/Search Button | Calculadora | busca |
| NumLK/Clear Button | NumLK | Limpar |
The integrated wrist rest is designed to provide comfort and reduce strain during prolonged use. The low-profile scissor-switch keys offer a quiet and tactile typing experience.
Vídeo: Un overview of the EK04 N Ergonomic Number Pad, showcasing its design and key features in a 30-second clip.
Guía de carga
- Cando a batería está baixa, o indicador vermello de batería baixa parpadea ata que o teclado numérico se apaga.
- To charge, insert the Type-C end into the number pad and the USB-A end into your computer's USB port or a compatible USB charger. The red indicator remains solid during charging.
- A full charge takes 2-3 hours. The indicator turns green when charging is complete.

Image: A diagram illustrating how to charge the EK04 N numeric keypad using the provided USB-C cable, showing the charging port and indicator light status.
Maintenance and Safety Warnings
- Seguridade de carga: Emprega só o cable incluído. Cárgao nunha zona seca e ben ventilada, lonxe de materiais inflamables.
- Manexo da batería: Do not attempt to replace the item's lithium battery. Battery replacement should be conducted by qualified personnel to prevent hazards.
- Exposición á calor: Evite deixar o artigo en ambientes de altas temperaturas ou baixo a luz solar directa, xa que podería provocar un incendio.
- Exposición ao líquido: Manteña o artigo lonxe da auga e dos líquidos. Non o use se está mollado ata que estea completamente seco.
- Danos e fugas: Deixe de usalo e consulte o servizo de atención ao cliente se o artigo está danado ou a batería ten fugas.
- Eliminación correcta: Siga a normativa local para a eliminación de dispositivos electrónicos e baterías. Non os tire co lixo doméstico.
- Interferencia de radiofrecuencia: Este dispositivo pode causar interferencias con outros aparellos electrónicos. Manteña unha distancia segura dos dispositivos sensibles.
- Seguridade infantil: Manteña o artigo e os seus compoñentes fóra do alcance dos nenos para evitar riscos de asfixia ou inxestión de baterías. Nunca permita que os nenos manipulen o artigo sen supervisión.
- PRECAUCIÓN: O incumprimento das advertencias anteriores pode provocar lesións graves ou danos materiais.
Troubleshooting (Q&A)
How to deal with disconnection issues, keys repeating or typing delay?
- Please ensure that the number pad is fully charged. A low battery can affect the performance of the number pad.
- If using a USB dongle to connect the number pad to the device, unplug and replug the USB dongle, trying a different USB port if necessary.
- If connecting the number pad to the device via Bluetooth, delete the Bluetooth connection from your device's Bluetooth connection list, and restart your device and re-pair the number pad by following the steps in the user manual.
- If the issues persist, try to connect the number pad to other devices to check if the same issues occur and don't hesitate to contact our customer service for assistance.
How to deal with the number pad can not charge?
- Vol. de carga nominaltage for the number pad is 5V. It is recommended to use the computer's USB port for charging, and using a charger is not recommended.
- Try to change another USB-C cable to recharge, in order to confirm whether it is a cable issue or a fault with the number pad.
How to deal with the key falls off the number pad?
If the key falls off the number pad and can't be installed back, please don't hesitate to contact our customer service for assistance.
Especificacións do produto
| Parámetro | Valor |
|---|---|
| Capacidade da batería | 280 mAh |
| Traballo Voltage | 3.7 V |
| Corrente de traballo | ≤2.5 mA |
| Corrente Durmida | ≤0.03 mA |
| Tempo de espera | 100 días |
| Tempo de traballo | 112 horas |
| Tempo de carga | 2-3 horas |
| Camiño de espertar | Preme calquera tecla |
| Dimensións | 152 * 206 * 16.4 mm / 5.98 * 8.11 * 0.65 polgadas |
| 2.4G Channel System Compatibility | Windows 7 a 11 |
| Bluetooth Channel System Compatibility | MacOS 10.10 or later, Windows 7 to 11 |
Modo de sono
1. When the number pad is not used for more than 60 minutes, it will automatically enter into sleep mode and the indicator light will turn off.
2. When using the number pad again, just press any key, the number pad will wake up within 3 seconds, and the lights come back on and the number pad starts working.
Garantía e Soporte
ProtoArc offers a 2 ano de garantía on this product, ensuring 100% coverage for manufacturing defects.
For any questions or assistance, please contact us at:
- Correo electrónico: support@protoarc.com
- Teléfono: (+1) 866-287-6188
- Horario de funcionamento: Monday-Friday: 10am-1pm, 2pm-7pm (Eastern Time)
- *Pechado durante as vacacións

Image: A card detailing ProtoArc's 2-year warranty and customer support contact information, including email and phone number.





