Introducción
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 embalaje
Asegúrese de que todos los artículos estén presentes en el 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 del producto
- 34 Keys Full-Size Number Pad: Includes calculator key, PgUp, PgDn, Insert, Delete, Backspace, etc.
- Conectividad 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).
- Baja Profile Scissor-switch Keys: Proporciona una experiencia de escritura silenciosa y con capacidad de respuesta.
- Carga USB-C: Built-in rechargeable lithium battery with 250 hours of standby time after 2 hours of full charge.
- Amplia compatibilidad: Compatible with Windows 8, 10, 11 and Mac OS.
Características principales Visuales

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.

Imagen: Un primer 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 y 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.
- Retire el receptor USB de la parte inferior del 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). Buscar 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.
Cambiar entre dispositivos
After channels are connected, press the corresponding channel button (2.4G or Bluetooth) to switch between the two connected devices.
Instrucciones de funcionamiento
The EK04 N numeric keypad provides a full range of numeric and function keys for efficient data entry and navigation.
Funciones clave
| Llave | Función de Windows | Función Mac OS |
|---|---|---|
| 2.4G Channel Button | Canal 2.4G | / |
| Bluetooth Channel Button | Canal Bluetooth | Canal Bluetooth |
| Calculator/Search Button | Calculadora | Buscar |
| NumLK/Clear Button | Núm. LK | Claro |
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
- Cuando la batería está baja, el indicador rojo de batería baja parpadea hasta que el 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.
Advertencias de mantenimiento y seguridad
- Seguridad de carga: Utilice únicamente el cable suministrado. Cargue la batería en un lugar bien ventilado y seco, lejos de materiales inflamables.
- Manejo de la batería: Do not attempt to replace the item's lithium battery. Battery replacement should be conducted by qualified personnel to prevent hazards.
- Exposición al calor: Evite dejar el artículo en entornos de alta temperatura o bajo la luz solar directa, ya que podría provocar un peligro de incendio.
- Exposición a líquidos: Mantenga el artículo alejado del agua y otros líquidos. No lo use si está mojado hasta que esté completamente seco.
- Daños y fugas: Deje de usarlo y consulte con el servicio de atención al cliente si el artículo está dañado o la batería tiene fugas.
- Eliminación correcta: Siga las normativas locales para desechar dispositivos electrónicos y baterías. No los tire junto con la basura doméstica.
- Interferencia de radiofrecuencia: Este dispositivo puede causar interferencias con otros dispositivos electrónicos. Manténgase alejado de dispositivos sensibles.
- Seguridad infantil: Mantenga el artículo y sus componentes fuera del alcance de los niños para evitar el riesgo de asfixia o la ingestión de las pilas. Nunca permita que los niños manipulen el artículo sin supervisión.
- PRECAUCIÓN: El incumplimiento de las advertencias anteriores puede provocar lesiones graves o daños a la propiedad.
Solución de problemas (preguntas y respuestas)
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?
- El vol nominal de cargatage 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.
Especificaciones del producto
| Parámetro | Valor |
|---|---|
| Capacidad de la batería | 280 mAh |
| Vol de trabajotage | 3.7 V |
| Corriente de trabajo | ≤2.5 mA |
| Corriente de dormir | ≤0.03 mA |
| Tiempo de espera | 100 días |
| Tiempo de trabajo | 112 horas |
| Tiempo de carga | 2-3 horas |
| manera de despertar | Presione cualquier tecla |
| Dimensiones | 152 * 206 * 16.4 mm / 5.98 * 8.11 * 0.65 pulgadas |
| 2.4G Channel System Compatibility | Windows 7 a 11 |
| Bluetooth Channel System Compatibility | MacOS 10.10 or later, Windows 7 to 11 |
Modo de suspensión
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 y soporte
ProtoArc offers a Garantía de 2 años on this product, ensuring 100% coverage for manufacturing defects.
Para cualquier pregunta o ayuda, contáctenos en:
- Correo electrónico: soporte@protoarc.com
- Teléfono: (+1) 866-287-6188
- Horario de atención: Monday-Friday: 10am-1pm, 2pm-7pm (Eastern Time)
- *Cerrado durante las vacaciones

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





