Close up view of components on the Backside of MCU with Bluetooth

MEMS Microphone

Not able to cross the part. The part has the following markings: 6C2 1D7. If you happen to know the part, please leave the part information in the comments

Battery Management IC

Part Markings 651DE1M0 13Q0W52C

Could not cross the part. The part has the following markings: SV4CP 2H0. If you happen to know the part, please leave the part information in the comments