All it is, is a big capacitor that plugs in in your Rx.

i use this http://www.amainhobbies.com/product_...tage-Protector

Its cheap and it works. I dont have to run it on my setup,but for now i do untill i get a heat sink fan for my motor..

And i run a tekin rs, trinity, savox super speed servo, and a transponder. and i didnt know if was plugged in wrong and it ran just fine.