I don't know how to test this item, if you do, I am happy to do so under your tutelage. It seems like a pretty straight forward item and looks to be in good condition.

Check the photos carefully as I tried to honestly show what you are getting.

I am a finder not a keeper, so please ask any question you might have-I don't know what is important to you.

I will always combine shipping to save you money if that is possible. When making a multiple purchase, it is best to add items to your shopping cart and then request an invoice.