ULANZI U-Mic AM18 - Testing along HyperX SoloCast

I had TNVI wireless mic for my mirrorless but it always got stuttering audio and battery wont last more than 2 hours. So, I made my mind for a new wireless mic. This ULANZI U-Mic AM18 looks okay. Comparable with the high end DJI, Rode and Saramonic.
Why I choose this mic?
1. Case which act as a powerbank.
2. Can record internally
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I purchased this during the shopee sale at N4Camera Official Store for about MYR 400 (85 USD, direct convert during this video is recording)
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Gear:
Sony A7M3
Sony 85mm
GS LiteBox Max (v2) with softbox
GVM 50 RS-II (RGB)
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