ProtoArc HW390 Wireless Keyboard

Product Specifications:

• Size: 105×148.5mm
• Weight: 100g
• Model: HW390
• Type: Wireless Keyboard

Installation and Setup:

1. Insert batteries into the wireless keyboard.
2. Ensure the receiver is connected to your device’s USB port.
3. Turn on the keyboard using the power button.
4. Allow the devices to pair automatically.

Operating Instructions:

• Use the keyboard within the recommended range for optimal performance.
• Press keys firmly and directly for accurate input.
• Keep the keyboard away from water or extreme temperatures.
• Regularly clean the keyboard using a soft, dry cloth.

Troubleshooting:

If you experience connectivity issues:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment to an outlet on a different circuit from the receiver.
• Consult the dealer or a technician for further assistance.

Product Features

• Scrlk White Indicator Light
• Numbers Lock/On White Indicator Light
• Charging Indicator Light
• Power/Low Battery Red Indicator Light

USB Connection

1.  Switch the number pad ON.
   
2. Take out the USB receiver from the bottom of the number pad.
3. Plug the USB receiver into the USB port of the computer, then the keyboard and number pad can work normally.

Charging Guide

1. When the battery is low, the low battery red indicator starts flashing until the keyboard/number pad turns off.
2. Plug the Type-C port into the keyboard/number pad and the USB-A port into the computer to charge. The red indicator light stays on while charging.
3. It takes 2-3 hours to fully charge. The indicator light turns green when fully charged.

Numeric keypad

NOTE:
This equipment has been tested and found to comply with the limits for a Class B digital device, punderpart 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used by the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

•  Reorient or relocate the receiving antenna.
•  Increase the separation between the equipment and the receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help
• Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
• This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Frequently Asked Questions:

Q: What should I do if my keyboard stops responding?
A: Check the battery level, reposition the wireless receiver, and ensure there is no interference nearby.

Q: Can I use this keyboard with a tablet?
A: Yes, as long as your tablet supports external keyboards via USB or Bluetooth connectivity.

Documents / Resources

ProtoArc HW390 Wireless Keyboard [pdf] User Manual HW390, HW390 Wireless Keyboard, Wireless Keyboard, Keyboard

References

• User Manual