Is there a problem you are having with it? If not, the ESC's come usually plug and play with slow start and moderate timing with no brake. You may have to do a throttle calibration, and this is done by turning on the Tx, raising the throttle all the way up, plugging in the helicopter, waiting for a series of two beeps (I think, it's the first set of beeps) then lowering the throttle all the way down. It should initialize and work as usual.