This cordless concrete pencil vibrator operates on an 18V M18 Redlithium battery of 6 Ah capacity. It has a tool length of 57 inches, a four-inch radius of vibration, and 0 to 12500 vibrations per minute. The handheld quick-connect vibrator has a four feet shaft length, a head length of one inch, and a head diameter of one inch. It has a brushless motor.