RE: Most Air Movement on Planes Surface??
For those of you interested in these things,I can guarantee that they work and work well.Don't waste your time on these toy store thingys..
I got two of the I4C large ones and they sound off.Even on a somewhat slower plane you can hear them,even far off.
I'm well satisfied for $17.95,and will order more.
Thought I'd let ya' know.
Thanx
Walt