Question about Philips Shaver Series 5000

Hello, I don't really understand Phillips models. There are two different 5000 series? How do you charge the cheaper one? There's no station, no cable and a USB A cable to a 220v plug, which is pretty rare... Do you need a charger or does the model include a small transformer? In short, I don't understand the point of this X5004/00 model without a cable... and even less the naming of the Philips series and the lack of information and precision on the Galaxus site... As for me, I'm sending mine back, which generates unnecessary return postage. Thank you for being a little more detailed in your descriptions!