1. Insert the USB port to 5V power source.(Make sure your power bank must be fully charged before use)
2. Long press the button until it turns red to start heating operation.(Flashing indicates system detection, long press again to restart; Continuous flashing indicates improper Power Bank.)
3. Press the button to change level of temperature.
4. Long press to turn off the heating system.
1. Take out the power bank.
2. Neutral detergent is available.
3. Washed with hand or Machine washable.(Do not dry cleaning; Do not bleach; Do not iron; Do not twist dry)
4. After nature air drying can be use.
1. Pls don’t connect to the power bank if you’re not using the vest.
2. Do not use acidic detergents or high-temperature washing the vest. The power must be removed before washing.
3. If you get wet in the rain, turn off the power immediately and stop using it.
4. Please note that the actual heating time depends on the outside temperature and your power bank capacity of the battery.
5. Sometimes, when press the temperature control button, the red led will be not on, please don`t worry, this means the heating system is in self-inspecting. we can just do below step again or plug into power bank again, then press the button.