Concrete Vibrator Voltage 72V DC Shaft Length 21 ft Head Diameter 2 1/2 in Radius of Vibration 2 1/2 in Vibrations per Minute 11 000 vpm Brushless Motor Yes Cordless Tool Kit Contents (1) Bare Tool Charger (1) Remote (2) Battery Pack Battery Capacity 6.0 Ah Head Length 2 1/2 in Tool Length 12 3/5 in Shaft Connection Type Quick Connect Battery Model Number MXFXC406 Battery Series REDLITHIUM(TM) XC406 Charger Included Yes Charger Model Number MXFC Concrete Vibrator Type Backpack