Audio listening system

FIG. 1 is a front perspective view of an audio listening system showing the claimed design;

FIG. 2 is a rear view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side perspective view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a right side view thereof.

The broken lines in the figures show portions of the audio listening system that form no part of the claimed design.