JNH Lifestyles 1-2 Person Far Infrared Sauna Latest Carbon Fiber Heaters 5 Carbon Fiber Far Infrared Heaters, ETL Approved, Best performace Double layer Canadian Hemlock T&G timber, Best insulation UL Listed components and ETL Approved, Use with confident. 2 Year warranty! Built-in AUX control and 2 Premium Speakers. digital control that allows you to control the temperature and the duration of use of your sauna.