4 CERAMIC HEATERS - other inferior sauna brands have only 3 heaters or less. More heaters means your Infrared Sauna is more effective! LOCATION - The Buena Vista Ceramic Sauna has 2 ceramic heaters on the back wall, 1 on the front wall and 1 on the front of the bench. These 4 ceramic heaters evenly bask you in soothing infrared heat. INFRARED WAVELENGTH - Saunas put out infrared wavelengths from 5-12 microns, which are the portions of infrared heat that most benefit the human body. OPERATING TEMPERATURE - Suanas operate up to 141 degrees F. Sauna are made of solid Hemlock wood and constructed with tongue & groove assembly. The wood planks are narrower than other brands, only 2.5" in width - this helps ensure heat does not escape and stays inside the sauna - right where you want it! The exterior of the sauna is stained with an appealing, natural color; the interior is smooth sanded natural wood. This Sauna uses 120v/15 amp power, and will plug right into your standard home electric outlet. No need to upgrade or change out electrical! CONTROL PANEL - Saunas come equipped with dual easy-touch Interior and Exterior LED Control panels - easily adjust your sauna settings from inside or outside. BRONZE TINTED GLASS - The door and glass panels on Sauna are made of beautiful, bronze tinted Tempered Glass. The tint provides a bit of privacy and aids in heat retention, while providing the safety of tempered glass. LIGHTING - Sauna is equipped with interior lighting. Enjoy some reading while basking in the warmth of your Sauna. SOUND SYSTEM - The Buena Vista comes standard with a AUX mp3 connection with built in speakers, so you can crank up your favorite tunes while soaking up all the health benefits of your sauna! Other inferior sauna brands make you pay extra for this option, but every Sauna comes with a sound system standard. ADJUSTABLE VENT - The adjustable roof vent allows you to open the vent to the outside air if desire