question about power hoppers?

[nucl3arboNg]

i am wondering what kind of hoppers only make sound when you are firing? i only play wood games and want something that will not give me away. i am looking at the VL 12v revy, but would like to have one that only has the motor going when firing. thanks.

[UTLadiesMan]

None of them will run when you aren't firing for a period of time, unless you turn your gun upside down. Or if you get an older brASS Eagle version of the revvy w/o the x-board that is translucent, the sun can cause it to turn on from time to time.

[DasBaldDog]

Dude, when you fire, they're gonna know where you are.

[Ref]

Errr, I think he was asking if the revvys made a noise all of the time that would give him away in the woods (which they don't in its new).