Detailed product description: No more heating problem (lack of heat) New features add-on with negative ion, aromatherapy Speed-up sweating effect at short time period Super conductive fir carbon fiber heating element (walls panel) Super conductive fir carbon fiber heating element (foot pad) Fir ceramic heater with self automatic temperature preset control (fir radiant heat blower) Accessories included: Far infrared sauna box Far infrared carbon fiber heating panels Far infrared ceramic heater Intelligent temperature automatic preset control for various level of heating (different body constitution) Master controller unit Handheld timer and heating level controller Compact folding chair Heating foot pad Foam floor pad