Executive Summary - Specification and Supply PositionTL;DR - The Mistairhome WL-OHF03F (STD) is a Brushless BLDC, sensorless drive unit running to 17500 RPM, delivering 9.0 m/s at 150 mm and 45.6 CFM; the pack is 6400 mAh lithium polymer giving 13.2 hours on the lowest step and recharging in 2.8 hours from empty on 5V/2A; speed control is 4 fixed steps; it measures 32.4 dB at 1 m in operation, draws 9 W from USB-C 5V/2A, weighs 265 g, and ships documented to CE / RoHS / FCC s···