Comment 7 for bug 1414706

The following headsets were tested on Lenovo ThinkPad X240 (CID 201307-14019) and
could reproduce this bug.

They are[1]:

OMTP: Nokia WH-102 HS125
CTIA: SONY MH-EX300AP, Samsung (unknown model), HTC (unknown model)

[1] It is hard to know which type the headset is because there is no model label, and
even there is a model label, the data searched from internet seems to be unclear or very few.
I confirmed the type by the brands because of history background of the development of the pole standard, and
a electronic multimeter to measure the resistance of the poles of the headsets.