It is a flame-retardant electronic temperature control heating cap. The inner embedded plastic film is waterproof and anti-electricity, and it's detachable and convenient to be washed. Two level of temperature controlling, you can adjust to your favorite temperature. Flame-retardant products is more secure. It is a indispensable tool for nursing your hair at home. Specifications : 1.Within far infrared heating pipes 2.Enlarge the cells of your head and let them absorb more nutritions 3.Soothing to use and easy to operate.4.Adjust the heating degree by switching the whirl plate.With hot oil (treatment/hair mask) More effective