Harvil Tranquility 2-Person Hemlock Sauna with Carbon Infrared Heaters Assembled Sauna Dimensions: 47.25in Width x 39.5in Depth x 75in Height / Inside Dimensions: 44.3in Width x 35in Depth x 68.5in Height Indoor Use Only. Comfortably Seats 2 People on the Extra Deep Bench Along Back Wall of the Sauna / Bench Dimensions: 44.3in Width x 17.7in Depth Includes 6 Carbon Heaters: 2 Heaters on Back Wall, 1 Heater on Front of Bench, 1 Heater on the Floor, and 1 on Each Side of the Sauna For Even and Soothing Infrared Heat / 1770 Watts / Operates Up to 140 Degrees F - With Infrared Wavelengths from 5-12 Microns for Maximum Benefit Features a Built-In Radio with CD Player with MP3 Input Jack and Small Shelf for the MP3 Player to Rest / 2 Built In Speakers / 2 Movable Ergonomic Back Rest for Ultimate Comfort / Movable Magazine Rack / 2 Movable Cup Holders / Double Towel Hook Dual Touch Interior and Exterior Control Panels / 7-Color Light Therapy with Control Panel / Oxygen Ionizer / Vent with Long Slide Handle / 2 Metal-Framed LED Interior Lights and Exterior Lighting