Intelligent Plumbing Blanket, Water Circulation Heating Is Not Dry, Does Not Get Angry, No Pump Is quieter. Hot Water Circulation To Warm, Not On The Fire, Not Dry, Constant Temperature,Automatic Power off. High-elastic crystal velvet fabric, Anti-wrinkle and wrinkle-free. The hot water cycle sleeps all night, No water pump is quieter, Reduces radiation, And water circulation heats up. The 8-speed temperature control intelligent downshift is freely adjusted according to the different needs of the human body for temperature.