K92R4-Comfytemp Portable Far Infrared Heating Pad For Lower Back
A:
The device runs out of battery. Please charge with a 12V 2A adapter for 3 hours before using again. When the LED stays green, it means it is fully charged.
A:
1. The current voltage of the battery is too low. Please make sure to charge with a 12V2A adapter for 3 hours until fully charged before use.
2. When BLE is not connected, the default timer is 15 minutes. If longer timer settings are needed, please use the app.
A:
1. It's recommended to use it continuously for more than 15 mins before judging if the temperature meets the needs.
2. Low battery levels affect temperature performance. If low battery is detected, please recharge promptly.
3. In order to prevent low temperature burns, we have limited the highest temperature.
A:
If the redness disappears quickly, there is no risk – this is caused by the locally stimulated, increased blood flow.
Here are some suggestions:
1. Moderate heat: Choose an appropriate heat level to avoid skin irritation.
2. Use protection: Place a thin cloth between skin and heat pad for added comfort.
3. Time and frequency: Limit use to 20-30 minutes per session, with breaks for skin recovery.
4. Avoid during inflammation: Don't use on inflamed skin to prevent worsening symptoms
A:
1. First, make sure your phone's BLE is turned on.
2. Follow the instructions on Section 7.3 of the User Manual for BLE connection.
3. Try deleting the BLE device and setting it up again.
4. For safety, you can't use the device while charging the product.
5. To find the problem, check if your phone can connect to other BLE devices at home or try a different phone to connect to this one.
A:
For Android systems, please go to Settings - Apps & permissions - App info - Top-right corner (three dots) - Show system apps - BLE - Storage - Clear data, then attempt to reconnect.
