FPC on True Wireless Stereo(TWS) Earbuds
Two layers separated
Front view of connecting to earbud bottom
BN26V chip on FPC
Microphone for calling at bottom
Sensor to detect the earbuds wearing status
TWS Battery main board and two microphone total
TWS Main board on charging case
Rigid Flex board structure
Speaker connected to the main board with FPC
z93k49 ANC microphone on top and IC with AD8 printed
Connecting to Screen A & B