For clarity:
There is a difference between the N3 and the N3-A (Audio).
I jump with the N3-A and it does indeed shout out the altitude every thousand feet, but it also requires HEADPHONES. There is no external speaker.
The plain-vanilla N3 is generally used EITHER as a wrist worn digital altimeter, in which case it is not being used as an audible. Or if it is being used as an audible, then it is inside your helmet and not being used as a digital altimeter. It cannot be both. Note also that the plain-vanilla N3 does NOT call out altitudes or speak to you ("breakoff, breakoff.. deploy, deploy") in free fall, it just beeps and shrieks alarm tones like a standard audible.
