When I say water proof, you people say not water proof and will burn and blah blah... Then I ask supplier, they say if really water go in and the unit fail, bring back and warranty lah. They will change new one for you.

Now, when i say got warranty if water go in, then this jimmylim85 will start to accuse or make assumption that water will go in and not water proof but the fact is, its water proof , be it eternally (case sealed) or internally (circuit board sealed) based water proof as they imposed it.  But he can say his headset is EXTREME cheap but there are shop selling cheaper .... so meaning he is lying?  Or simply becoz his price consider cheap but just not extreme enough?
Huakenny,
I know what you trying to do. Go ahead. Just do it. 

Bro, u mean 20km more mileage of rm50 petrol or rm50 petrol goes up to 20km only??