FEATURES Super compact and portable fan, for all occasions Clamp with rubber insert for simple and versatile fixing (for both square and round materials) Rotating and tilting fan to direct the air flow where necessary PERFORMANCE Air flow speed ( m³/h) 220 | 300 Fan speed (rpm) 2500/3400 High no-load speed (mm|s) 3400 Low no-load speed (mm|s) 2500 BATTERY Battery charger included Yes No. of batteries supplied 1 (Ah) 4.0 Power 18 V WEIGHT Weight with battery pack (EPTA) (kg) 0.8(RB1820C)