Since the Technics Headphone enclosure was glued together, the only way in was to cut into the headphone. The glue was light and the Touch Sensor cap came away with only a little force applied around headphone at the Touch Sensor cap seam

Since the headphone was easy to open to access its components, it may be possible to perform battery changes without damaging the headphone. This is the first possible self serviceable headphone that I have performed a teardown on

A utility knife was used at the Touch Sensor cap seam to help loosen and pry the Touch Sensor cap loose. When the Touch Sensor cap appeared loose, a Jimmy Tool was used to pry the cap free to open the headphone

Once opened, we get our first look at the inside of the headphone

Battery

Speaker Chamber

Bluetooth Radio/MCU and Antenna

MEMS Microphone