Yes it was just three I recieved, with three battery packs and three usb connectors.
I think they could be useful with 1st-2nd years, but the languages are far too restrictive. The more able kids will get very frustrated. The “text” based Microsoft language allowed no room for syntax error, as a step on from the scratch style blocks it was more just a complication than a step-up. Also the language allows for commands that the blocks just can’t do. The simulator works with the code but doesn’t match the hardware. Also I am not sure how the students save their work, presumably by downloading their code and then uploading it next session.