thx all.
TomGeorge - I am not into cad or drawing pics, a photo would not help at all,
wiring is a bit messy - so sorry.
confined to talkie.h, it's a simple circuit on Arduino Mega 2560.
I have pinned the buzzer to 3, + to 5v and - to gnd.
I may have to go for a better system - amp/speaker.
sunil bv