Panasonic KX TGA420B - Manual (Page 9)

Connecting the AC Adaptor
The station unit is powered by the AC power while the AC adaptor is
connected (AC power mode). At the same time the battery is being
charged in the battery compartment (p. 8).
' USE ONLY WITH Panasonic AC ADAPTOR PQLV1 (Order No. PQLV1Z).
'The AC adaptor must remain connected in the AC power mode (while charging
the battery). (It is normal for the adaptor to feel warm during use.)
For noise-free operation:
Calls are transmitted between the station unit and the base unit using radio
waves, the same as the cordless handset.
—If you use the station unit near a microwave oven which is being used, noise
may be heard from the receiver. Move away from the microwave oven and
locate the station unit near the base unit.
— If you use the station unit near another phone’s base unit, noise may be
heard. Move away from the cordless phone’s base unit and locate the station
unit near the base unit.
For assistance, please call: 1-800-211-PANA(7262)