Both the Belkin AUC004’s charging case and the earbuds feature a status light to indicate their charging level.
The status light's color of the case indicates the following:
| Light Color | Charge Level |
| Red | Low charge (less than 50%) |
| Orange | Half charge (at least 50%) |
| White | Full charge |
The status light's color and behavior of the earbuds indicate the following:
| Light Color and Behavior | Charge Level |
| Flashing white | Low charge (less than 50%) |
| Solid white | Full charge |