The Olecea Hot + Cold Ceramic Infuser is a versatile skincare device offering both heating and cooling functions. The heating mode operates at 104°F ± 3.6°F, while the cooling mode ranges from 41-44.6°F. With a sonic infusion feature operating at 1 MHz, this device enhances the absorption of skincare products. It also includes a 10-minute timer and a built-in lithium battery, providing a convenient and efficient skincare routine. This device is ideal for soothing, invigorating, and refreshing the skin.