Millet piston in-ear headphones violent dismantling

Although the performance of the Xiaomi Piston is not particularly outstanding, the exquisite workmanship and brand influence make it a great success, and what is the structure inside the shell? We also violently dismantled it to study its internal acoustic structure. And the characteristics of the "sandwich" diaphragm. It can be seen that the diaphragms of the two generations of pistons are not the same. The 2015 version and the millet headphone diaphragm structure are similar, but the volume and thickness are much smaller. It can only be forcibly opened with a knife to completely destroy the outer casing.

Xiaomi millet piston in-ear headphones [2.0]

Xiaomi millet piston in-ear headphones [2.0] - Unpacking the unit housing

Xiaomi millet piston in-ear headphones [2.0] - wire mesh on the back of the unit

Xiaomi millet piston in-ear headphones [2.0] - unit diaphragm

Xiaomi millet piston in-ear headphones [2.0] - unit coil and diaphragm

Xiaomi millet piston in-ear headphones [2.0] - use the micrometer to measure the diaphragm thickness 1

Xiaomi millet piston in-ear headphones [2.0] - corpse

Xiaomi millet piston in-ear headphones [2015]

Xiaomi millet piston in-ear headphones [2015] - saw open shell

Xiaomi millet piston in-ear headphones [2015] - coil and diaphragm

Xiaomi millet piston in-ear headphones [2015] - coil and diaphragm

Xiaomi millet piston in-ear headphones [2015] - micrometer to measure diaphragm thickness