To me and my hearing, the audio is so loud that I have to use a single earpiece earphone
as the speaker. I'm talking one of those little ones that fit in your ear and has a little loop
to hang off the ear. I keep it plugged in all the time, and it's my speaker instead of the one
in the machine. I never actually stick it in my ear, as I have no trouble hearing it when it's
clipped to the arm band.
Turns that loud BONG, into a not so loud bong. I'm a sneaky hunter, and I do not want
everyone within 1000 yards hearing my machine go beep, boink, BONG..
I guess a manual GB would be handy, but for the grounds I'm usually over, it hasn't really
been an issue.
I still think it's the best $212 machine out there. I've been running mine over six years I think..
And haven't had any trouble with it yet. Bang on wood..