I stumbled on these two “hidden” settings on my Baofeng radio yesterday which I added to the Short Guide:
From the MENU settings:
TDR ON allows the radio to quickly scan between the A/B channels or frequencies.
BEEP OFF turns of the beep when pressing buttons.
VOICE OFF turns off the voice when pressing buttons.
MDF-A/B sets how the channels / frequencies are displayed. I have one set to NAME and the other to FREQ.
ROGER OFF turns off the roger beep. Please turn this off!
The other setting I recommend changing is the squelch levels using CHIRP. More info on how to do that on the Chirp How-to page.