I just purchased an AirZound, and it seems to work OK.
It even came already charged with a bottle full of air!
I'm in Japan, and I bought the horn from an American vendor... it arrived fully charged and ready to blast!

So, just to test it out, I ran all of the air out of it... one long blast of noise, and then pumped it back up to the recommended 80 PSI.

When I tried to disengage the pump, nearly the whole Schrader valve under the horn button tried to follow... it didn't want to separate from the pump! I got the pump off, and tried the horn, and all I got was "Pfffffffft".

I tried to shove the Schrader valve back into the horn, but it wouldn't go.

Then, I did what the directions suggested.
I tried to "If necessary, gently pull tube to reset valve after refilling."

That is, just above the bell of the horn, I pulled the air hose toward the bell of the horn.

The Schrader valve popped back into place, and when I pushed the horn button, BLAMMMM!!!... the horn worked again.



OK, since that question is answered, I have a question of my own...

I just got my first AirZound, and I asked this over in the Commuting forum, but, since nobody seemed to know anything over there, I've decided to piggyback on here and ask:


Does anybody know, specifically, what the difference is between the different versions of the AirZound?

Can you tell them apart just by looking at them?

Going by online stores' photos, there are gray ones, silvery gray ones, and maybe black/darker gray models, but I've seen no difference in the labels or logos.


My next project will be an attempt to lower the pitch of the AirZound so it sounds more like a Mack truck than a Fiat... because cage drivers respect BIG stuff...