Turing our attention back to the USB and Charger Interface board

Backside and Top Side views

Vesper VA1200 - Analog Piezoelectric MEMS Voice Accelerometer. Bone Sensor - used for Utterance Detection

Speaker Solder Connections

Unknown component - marked XDR[?]

Unknown Component - may be for light detection

Charger [power] / USB Connection Interface pads

If you know any of the unknown components, please leave a comment below