The Roslyn 4-person indoor infrared sauna features convenient side-by-side seating and a spacious cabin to relax, unwind and enjoy the experience with family and friends. The Roslyn has 10 carbo-nano heaters for quickly getting the sauna to your desired temperature of up to 140 degrees. The Roslyn also includes ergonomic backrests for maximum comfort, chromotherapy mood lighting, an oxygen ionization system for purifying the air, recessed interior and exterior lighting, a Bluetooth speaker system, and cup holders. The Roslyn is easy to assemble and the all-natural Canadian red cedar wood will enhance any decor.