And a timer function. The fan facilitates summer heat or speeds up the drying of fillers and paints. The oscillation movement allows ventilation over a wide area. Works with LXT® batteries or the included AC adapter. Max Air Velocity – 2.0m/s. Air Volume – 5.2 / 6.5 / 8.2 m³/min. Angle Range Horizontal – 180 º. Angle Range Vertical – 135 º. Automatic Rotational Angle – 45 º.