Audio input/output device

FIG. 1 is a first perspective view of an audio input/output device;

FIG. 2 is a second perspective view of an audio input/output device;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The design which is claimed is shown in solid lines in the drawings. The broken lines in the figures, including one tiny circular feature located on the bottom front of the article, one tiny and three larger circular features located on the bottom rear of the article, and four tiny circular features located on the top of the article, depict portions of the audio input/output device that form no part of the claimed design.