Any bumper recommendation for iphone 4 that does not have its own power or volume button. The buttons on the original bumper tends to press onto the iphone buttons.

I know there are lots of cheap bumper out there but those have poor cutting and don't fit exactly. I want something more precise.

can the original vapor 4 case be put on while charging?

Heard that there's issue with earphone what about the charging/sync cable?