Electrical cables and adapters
Electricity in Italy, comes out of the wall socket at 220 volts alternating at a 50 cycles per second.
In the US, electricity comes out of the wall socket at 110 volts, alternating at 60 cycles per second.
Not only the voltages and frequencies, but the sockets themselves are different.
To use laptops, battery chargers, etc. you need to know how to convert the appliances to use the new voltage, and how to connect that appliance to the sockets in the wall.
If your laptop or battery chargers is designed to run only on 110-120 volts, to avoid smoke and fire, you need a step-down power converter or transformer to safely step the voltage down from 220 to 110.
Sissa does not provide any kind of power converters, transformers, plug adapters.
This is an example of Italian sockets.