Ludi06015 years ago000Works with the Sony A6400 Tip Top. But the question is, how do I turn off the GP-VPT2BT? Lock? What a pity for the batteries without a power switch?Show in original language (German)Anonymous5 years ago000Good question. If the manual says nothing, then Sony must have forgotten something: https://helpguide.sony.net/ilc...Show in original language (German)Comment