I've held off buying the Sony battery grip for the A7ii, because of its rather high price. Today I noticed that Meike has started making one, and like their earlier effort for the A7 it incorporates a wireless remote. Only $129. Decided to take a chance and order one. It's shipping from China, so it will be a while before I have any impressions to share.
Model is Meike MK-A7II.
Here's an eBay listing