They've messed up in their picture descriptions before. It's the same model they had a few months back, just re-shelled in this sparkly purple candy looking shell, so it's got 4BA and a DD. I'll let their rep know that the picture is wrong.
I'm having a hard time deciding if I want to spend the extra $20 to get it re-shelled with the carbon and gold faceplate, since I do actually like their jellybean aesthetic. I just don't know if it's worth it to see the drivers when it's going to be a DD and two dual-chamber BAs.
Edit: Speaking of IEMs that look like candy, take a look at the ST3
Edit again: Apparently I'm bad at reading or something, so it should be three BA units in total. My guess would be a dual-chamber unit for the Sonion 33 series, a single chamber for the 23 series and then a single for the TWFK.