YUENTO : The YUEN‘TO CalculaPhone

A calculator! That's the kind of product that we rarely talk about here, true that you can find one in many products nowadays but the IDEA-IN company had a nice idea for this calculator sold under the YUEN‘TO brand.

The difference comes from how you use it, it's pretty much like a cellphone, only one hand is needed, so in no time you can max super complex operations such as 2+2.