I accidentally purchased the wrong quantity. It's a quiet and easy-to-use type. It is unopened. Ultra-quiet and powerful airflow with energy saving In the strongest operation mode (DC 1.5W), the monthly electricity bill is about 89 yen, and in the weakest operation mode (DC 12W) it's about 11.2 yen. The noise level of the DC motor is about 15dB. Suitable for bedrooms, rooms with babies, conference rooms, and other quiet environments. Adjustable from 1 to 10 hours Compared to conventional AC motors, you can save about 300 yen. With a maximum wind speed of 5m/s, it effectively circulates the air in the room. Specifications & After-sales Service】 Body size: Approx. W28 x D28 x H36/66/96cm / Weight: Approx. 4kg / Material: ABS / Power consumption: 12W / Power cord length: Approx. 1.5m / Airflow adjustment: 6 levels / Noise level: 15dB / Maximum wind speed: 5m/s / Remote control and Japanese instruction manual