3 Person capacity Exterior dimensions (WDH): 64" x 45" x 77" (roof overhang: add 4.2") Interior dimensions (WDH): 58" x 41" x 69" MP3 auxiliary connection Interior and exterior LED control panel Natural hemlock wood construction Electrical service: 120V/20amp (consult a certified electrician) Clasp together assembly 8 Carbon heating elements Tempered glass door Interior reading/chromotherapy lighting system Roof vent Sauna weight: 460 lbs. Shipping weight: 510 lbs. Ships in 3 boxes