To fully charge the device, plug the Color Muse 3 into the USB-C cable (included in the Color Muse 3 package) for 90 minutes. For best results, plug the device into a wall outlet. The device will illuminate solid ORANGE when it’s charging. Once the device reaches full charge, the top button will illuminate solid GREEN to show a full battery. You can also check the battery level in-app by going to “Menu” and selecting “Manage Device”. The battery is fully charged when the battery percentage shows 100%.