Well seeing is believing and I made video, Bellboy is broken.
Bellboy won't charge.
Bellboy didn't believe me, and treat me like I'm a retard.
I have a bad feeling if they might are a scam company selling shitty product. So I made second video trying to charge two products with their cable.
Show Bellboy and Anker with charging cable
Further I saw some posts on youtube, that some people has also charging problems. And they didn't get the experience as expected.
Returned the package