I have been enjoying using my pink UFO device for a while now, which I purchased on sale. I absolutely love how it heats up and provides light therapy. Once a week, I usually put on the UFO mask and repeat the session two times because it's so relaxing. I have sensitive and combination skin, but my skin approves of the device. To use the device, you need to download the UFO app and make sure it's fully charged so that it can connect with the app properly.