Since the Google Pixel Buds are made of plastic and are glued together, the only way in was to cut into the Google Pixel Bud. This is a destructive teardown

Once in, we are able to get our first look at the Google Pixel Bud's electronics. The stack up the Google Pixel Bud is as follows:

Touch Sensor

Main Circuit board

Battery

Speaker

Microphones

Charging and in Ear IR Detectors (not shown)