More skookum mic input jack.
Is the unit supposed to be used with an external mike or not?
Someone made a conscious decision to put a weak and flimsy input jack there.
Sure, they're going to fix my unit after I mail it halfway around the earth and wait ____ months, but will it be a simple solder that will readily break again?
That battery door doesn't bother me, you just have to learn how to use it.