Powering Delta 2 Max and Delta 3 Max Plus form 240 in USA

I assume there is a way to power my Delta 2 Max and Delta 3 Max plus from 240 volts as I assume they have a universal power supply so they can work world wide?

I just looking for an option if I ever need to recharge VIA 240 volts. This is not my first or second choice, just want to know if this is an option?

If they can be powered by 240 volts, do they need a neutral or can it be 2 hots and a ground? Does Eco Flow sell a cord for this? I believe its just an IEC of the correct wire gauge, right?