1. Product Overview
The Francfranc Heated Hand Warmer is a USB-powered device designed to provide warmth to your hands. Its fingerless design allows for convenient use of smartphones and other devices while wearing. It features adjustable temperature settings and a timer function for personalized comfort.
Image 1.1: Overview of the Francfranc Heated Hand Warmer, showing both gloves connected by a white USB cable with an inline controller.
2. Safety Information and Important Cautions
Please read this instruction manual thoroughly before use and retain it for future reference.
- Power Source: Ensure the power source is DC 5V 0.6A. If using an AC adapter, ensure its rated output is DC5V/1A or higher.
- USB Connection: Before connecting, check the USB plug for dust or dirt. Insert the USB plug firmly and completely into the port. Do not plug or unplug the USB cord with wet hands. When disconnecting, always hold the USB plug, not the cord.
- Temperature and Operation: Do not use the product in front of hot air outlets from heating appliances. Using the product in environments below 0°C may prevent continuous operation or shorten the product's lifespan.
- Cooling Period: After the timer automatically turns off the device, allow the main unit to cool down completely before restarting operation.
- Handling the Heating Element: Do not damage the heating element, place heavy objects on it, or bend it excessively.
- Water Exposure: Do not immerse the main unit or remote control in water, and avoid getting them wet.
- Maintenance: Always unplug the USB cord before performing any maintenance or cleaning.
- Storage: When not in use for an extended period, ensure the device is powered off and unplugged. Store in a dry place, away from direct sunlight and high humidity. Avoid folding the heating element tightly.
- Unusual Conditions: If you notice any unusual odors or malfunctions, immediately stop operation and unplug the USB cord.
- Children: Keep the product out of reach of infants and young children.
3. Package Contents
Please ensure all items are present in the package:
- Francfranc Heated Hand Warmer (Pair) with integrated USB cable and controller
- Instruction Manual (this document)
- Warranty Card
Image 3.1: The product packaging box, indicating the contents.
4. Setup
- Unpack: Carefully remove the hand warmers and USB cable from the packaging.
- Inspect: Check the product for any visible damage or defects.
- Connect Power: Insert the USB plug of the hand warmer cable into a compatible USB power source (e.g., computer USB port, USB wall adapter (DC5V/1A or higher), or mobile battery). Ensure the connection is secure.
Image 4.1: The inline USB controller with power, temperature, and timer buttons.
5. Operating Instructions
The hand warmers feature an inline controller for power, temperature, and timer adjustments.
- Power On/Off: Press the ON/OFF button once to turn on the hand warmers. Press and hold the button to turn them off.
- Adjust Temperature: After powering on, press the Temperature button to cycle through the three temperature settings:
- High: Approximately 43°C
- Medium: Approximately 37°C
- Low: Approximately 33°C
- Set Timer: Press the Timer button to set an automatic shut-off time. Available timer settings are 30, 45, and 60 minutes. The selected timer duration will be indicated by an LED light.
Image 5.1: A hand demonstrating the use of the fingerless heated hand warmer.
6. Maintenance and Care
- Cleaning: Always unplug the USB cord before cleaning. Wipe the surface of the hand warmers with a soft, dry cloth. Do not use abrasive cleaners or immerse the product in water.
- Storage: When not in use, ensure the device is powered off and unplugged. Store in a dry place, away from direct sunlight and high humidity. Avoid folding the heating element tightly.
- Cable Care: Do not pull or twist the USB cable excessively. Avoid placing heavy objects on the cable.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Hand warmers do not turn on or heat up. |
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| Unusual odor detected. |
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| Product life seems short or not operating continuously in cold environments. |
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8. Specifications
| Feature | Detail |
|---|---|
| Brand | Francfranc |
| Model Number | 1109100029542 |
| Power Source | DC 5V 0.6A (USB powered) |
| Power Consumption | 3W |
| Temperature Settings (approx.) | High: 43°C, Medium: 37°C, Low: 33°C (±3°C) |
| Off-Timer Settings (approx.) | 30, 45, 60 minutes |
| Product Dimensions (each glove) | W110 × D130 × H10 mm |
| Cord Length | 1.7 m |
| Country of Origin | China |
Image 8.1: The hand warmers displayed with a ruler to illustrate their dimensions.
9. Warranty and Support
This product comes with a 1-year warranty from the date of purchase. Please retain your proof of purchase and the warranty card for any warranty claims.
For support, inquiries, or warranty service, please contact Francfranc customer service. Refer to the contact information provided on the product packaging or the official Francfranc website.
Official Francfranc Store: Visit Francfranc Store on Amazon.co.jp
