NR07 Series Miro Humidifier Assembly (NR07G and NR07S) step 7:
To connect the power cable, plug in the cable into the Controller located directly next to the Mist-maker USB port. Make sure that the cable is fully inserted into the Controller. Do not tug on wire as it can result in damage to the product.
Below is a diagram highlighting the necessary steps needed to plug in the power cable into the Controller: