Wearable device with input and output structures

A head-wearable device, comprising:

• a center support extending in generally lateral directions and in an arc along a first plane;
• a first side arm extending from a first end of the center frame support and terminating at a first free end;
• a second side arm extending from a second end of the center support and terminating at a second free end, the center support and the first and second side arms being configured as a band extending between the first and second free ends respectively positioned on the first and second side arms, the first and second free ends being remote from the center support and spaced apart from each other at a first distance, and wherein the band is resiliently deformable to selectively increase the first distance;
• and
• an extension arm configured to present information to a user via a display element, the extension arm including first and second portions, the second portion including the display element, the extension arm extending at least partially along the first side arm on a first side of the center support and further extending from the first side arm to a display end that supports the display element in a position on the first side of the center support, the extension arm including a joint therein configured for movement of the display element the first portion and the second portion being rotatably affixed to each other at the joint and about an axis extending through the joint in a direction perpendicular to the first plane,
• wherein the joint of the extension arm is configured such that the movement includes rotation of the display element about the axis and along a second plane that is substantially parallel to the first plane,
• wherein the free end of the first side arm is enlarged relative to the free end of the second side arm, the enlarged free end housing at least one of circuitry and a power source employed by the display element, and
• wherein the extension arm further includes an inside surface facing the second side arm, the device further including a button disposed on the inside surface for controlling a function of the device, the function comprising one or more of a lock function, a sleep function and a power state function.