Features: High airflow: it has three motors and 18blades designed for this stove fan, which provides a very wide heat flow, Energy-saving oven fan: no battery or electricity required. Quiet operation stove fan: the stove fan works under 25dB, which very quiet. You can hardly hear a sound; Distributes heat from the stove more efficiently and quickly increases the temperature of your room,perfect for large rooms.; The working temperature approx. 80°C to 350°C (176°F to 662°F) and the fan speed automatically adjusted to the oven temperature. Specifications: Model: DY4206 Blades Material: Aluminum Alloy Operating temperature range: 80°C to 350°C (176°F to 662°F) Air volume: 160-220 Speed：1000-1600rpm Product size: length: approx 170MMx145MMx150MM/6.69x5.71x5.9in Package Includes: 1PC Stove Fan note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.