1.Program box. 2.Connect ESC and motor. 3.use external sensors. 4.Size:85*50*23mm. How to use it?l Put the JR tip of ESC Plug in anyone of the 3PIN connector in Prog-Box.l Connect ESC and motor, check illustration below:l Turn on the ESC,and you will hear a “Bi-“cheep, prompt the connecting is ok and you can go on.l Prog-Box display the name of Flier company first, after 5 seconds or pressing any ...