This program card is used to set the programmable parameters of brushless ESCs. It has a user friendly interface to make setting the programmable parameters very easy. It is conveniently pocket-sized so you can easily bring it to the racing or flying field.ALL EZRUNALL QUICRUNXERUN Series (Except: V3.1, V3.1-1S, V3.1- Stock Spec, XR8 Plus, XR10-Justock)Seaking Series (Except: PRO-160A)Platinum V1/V2Helion Brand VehiclesCorally Torox seriesPlatinum V3 SeriesFlyFun SeriesSkywalker Series