DLUS RF Radio Frequency Facial Machine - High Frequency Anti-Aging Device for Facial Wrinkle Reduction, Skin TighteningWITHOUT GEL & PROFESSIONAL: DLUS has upgraded the radio frequency skin care technology and replaced the traditional conduction current technology with the displacement current technology, so that we DLUS RF device can be used directly on the face and can safely heat the skin without gel. EASY TO USE AT HOME: Turn on the power of the device, stick the electrode head of the device on the skin to start skin care, and wait for the skin to be heated.