Temple and ear horn assembly for headworn computer

A method comprising:

• generating, via a light source of a wearable head device, image light associated with virtual content;
• and
• presenting the image light to a user of the wearable head device via a display portion of the wearable head device;
• wherein:
• the wearable head device comprises:
• a frame mechanically configured to support the display portion, and
• a first side arm pivotally attached to the frame and configured to hold the wearable head device in place on the head of the user, the first side arm comprising:
• a temple section comprising a coupling member and an opening disposed at a first end of the temple section;
• and
• an ear horn section comprising a pin located at a first end of the ear horn section,
• the opening at the first end of the temple section is configured to receive the pin, and
• the coupling member is configured to, in a first position, secure the ear horn section to the temple section and, in a second position, permit removal of the pin from the opening.