Well I have never messed around with any of the add on sound systems other than what is in the stock tanks.

Need to get a little more specific here on my questions........

Does this work with a stock HL tank and the existing transmitter and boards.
Does the board style 13-14-18 (think I have those right ) make any difference......??
How do you turn this sound on & off............( I would assume it has it's own on & off switch )
If I have this figured out right the power being supplied to the motors when you speed the tank up and down is what gives the progressive sound from this module..........Have I got that right. ????
But the two batterys is what it uses as it's own seperate power source......???


If I understand this right a (speaker sold seperetly ) and (two batterys ) plus this unit is all that is needed to come up with the sound and operation like in the "video"........??

BIGMIG