View attachment 13737
Not knowing what brand of device that you're using, it's not possible to give you a full answer. However, unless you're loading a lot of media files, I'd suggest a 16gb to get you started.
Jellybean isn't a brand but a version of Android. Regardless, your tablet should support at least 32GB MicroSD cards, and likely supports 64GB cards. But without knowing the manufacturer, we can't give you a concrete answer.