1. Reliable machine with power range of 3-9KW, suitable for dry saunas with 220v working voltage. Constructed from rustproof stainless steel for durability. 2. Fast heating coil made of stainless steel for efficient and quick heating.Note: Does not include sauna stones. 3. Easy temperature control and timing with internal settings for temperature and working time. Timer can be set up to 3 hours with max temperature of 110℃. 4. Double-layer design with galvanized sheet metal outer shell for added protection and durability. Heat dissipation gap between layers prevents circuit damage and extends service life. 5. Service: We value our customers' shopping experience! If you have any questions, please feel free to contact us, and we will get back to you within 24 hours!