Plantronics M22 - Manual (Page 12)

1
usING tHe OPtIONaL aC POWer aDaPter
(not supplied)
Using the AC Power Adapter is recommended
for uninterrupted operation.
1. Remove the batteries from
the Battery Compartment.
2. Connect the AC Power
Adapter to the AC Power
Adapter Jack on the
Vista M22.
3. Plug the AC Power
Adapter into
your power
source.