From my memory: A long hose, with adapter sleeves of various diameters for connecting to electrical appliances for direct extraction, a plastic bag, a filter bag, a two-part pipe with a floor suction thingy. Probably also a crevice nozzle.
It's all there to vacuum the whole basement or connect to a machine and do some tinkering.... I had ordered more filter bags, but I'm sure one is included.
Normally, the plug is Swiss. However, it is also possible that you receive a product with a European plug. If this is the case, you should receive an adapter with the goods. This is a mini adapter such as this one: Max Hauri Fixed adapter (Schuko socket, Type E+F (CEE 7/7)) / Then just clip it onto the socket and you're done!