2 tatami type; Power supply: AC 100 V (50 Hz/60 Hz); Power consumption: 520 W; Power consumption (per hour): (medium) 200 Wh, (strong) 300 Wh; Electricity bill estimated (per hour): (medium) 6.2 yen (high) 9.3 yen *Based on estimated electric cost. Power cord length: 1.5 m; Surface Temperature: 88.2°F (36°C) (when 3), 104°F (45°C) (when 5); Triple Fresh to deodorate formaldehyde, tobacco odor, everyday odor, and pet odor. Anti-slip treatment. Can be used with kotatsu / heater area switched (full / B surface). Cut timer: 6 hours. Electronic Notification Room temperature sensor (sensor detects the temperature of the main unit automatically when the room is high); Power saving mode (When fully used, it will pass power in 1/2 of the power by switching between the left and right alternating between the left and right for about 150 seconds intervals). The energy-saving and fluffy type prevents heat from escaping to the floor due to high insulation effects.