It does have universal dual voltage system. You will need an adapter to fit the outlet but not a transformer. I am not sure what type of outlet is used in Poland. You can buy a kit with a transformer and adapter to fit various outlet styles inexpensively. Business stores, luggage stores, etc. carry these kits.
Well the charger power supply says 100-240 volt, 50-60 Hz input. It has a two prong plug so it should work with the two prong european adapter. Ckitze USA to Europe Round Travel Plug Adapter Either way it wouldn't take much for this to work anywhere. Call 1-800-338-0552 and ask Panasonic.