The Savannah 3-person indoor infrared sauna is constructed of rich Canadian red cedar for durability with a pleasing aroma. The spacious cabin is designed for relaxing. The Savannah features 8 carbon-nano heaters for quickly and evenly dispersing the heat throughout the cabin. Standard features include dual interior and exterior keypads, Bluetooth speaker system, movable ergonomic backrests for maximum comfort, chromatherapy mood lighting, oxygen ionization system for purifying the air, interior and exterior lighting. Dimensions: 59 in. x 45 in. x 75 in. more spacious than any other 3-person sauna on the market 7 carbon-Nano infrared Heaters - advanced carbon-nano heaters provide smooth evenly dispersed heat with no hot zones and virtually no EMF Canadian red cedar wood - smooth and naturally appealing yet durable with a pleasant aroma, easy to install tongue and groove construction Bluetooth speaker system ETL/CSA certified meets all US and Canadian electrical safety standards - 120-Volt, 20-Amp plug