Cable assemblies for headphone devices

A wearable device comprising:

• a housing configured to be worn about a head of a subject;
• a power source at least partially disposed in the housing and disposed on a first side of the subject when the wearable device is worn about the head;
• at least one analog sensor at least partially disposed in the housing;
• a wireless radio at least partially disposed in the housing;
• and
• a cable assembly at least partially disposed in the housing and comprising
• a plurality of conductors,
• a jacket at least partially enclosing the plurality of conductors, and
• a termination assembly at least partially disposed in the housing, wherein the termination assembly includes a flexible circuit board including a plurality of conductive traces, and a plurality of terminals coupled to the plurality of conductive traces and to one or more of the plurality of conductors.

A cable assembly for a headphone device including a first earpiece and a second earpiece, the cable assembly comprising:

• a jacket having an outer diameter between 4 millimeters (mm) and 6 mm;
• a plurality of conductors at least partially disposed within the jacket and configured to electrically couple one or more electrical components disposed at least partially within the first earpiece to one or more electrical components disposed at least partially within the second earpiece;
• an inner coaxial cable at least partially disposed within the jacket, wherein the inner coaxial cable comprises a first end configured to electrically couple to an antenna at least partially disposed in the second earpiece and a second end configured to electrically couple to a wireless transceiver at least partially disposed in the first earpiece;
• and
• a termination assembly disposed in the first earpiece, wherein the first termination assembly includes a flexible circuit board including a plurality of conductive traces, and a plurality of terminals coupled to the plurality of conductive traces and to one or more of the plurality of conductors.