20V, 2 x 4.0Ah Li-Ion Battery + Charger, Variable Speed Brushless Blower

Battery Chemistry Li-ion
Voltage 20 V MAX
Battery Capacity 4.0 Ah
No-Load Speed: Low11000/min   Mid:15000/min   High:18000/min
Air Volume Low:67CFM(1.9m³/min)  Mid:92CFM(2.6m³/min)  High:110CFM(3.11m³/min)