ITEM NAME:Rc esc 30a brush motor speed controller w/ brake for 1/16 1/18 rc car boat tan Z a.imagelink a:hover.imagelink {color:#db3606;.Current(A): 30A. This ESC can work with 130/180/260/280/380 Brush Motor. Driver frequency: 2KHz. Function: forward, reverse, brake. Brake On / with brake. Size:20 20 MM.