FIG. 1 shows an isometric view of a first embodiment of a playback device showing a surface ornamentation or icon;
FIG. 2 shows a top view of a first embodiment of a playback device showing a surface ornamentation or icon;
FIG. 3 shows an isometric view of a second embodiment of a playback device showing a surface ornamentation or icon;
FIG. 4 shows a side view of a second embodiment of a playback device showing a surface ornamentation or icon;
FIG. 5 shows a side view of a third embodiment of a playback device showing a second surface ornamentation or icon;
FIG. 6 shows an isometric view of a third embodiment of a playback device showing a second surface ornamentation or icon;
FIG. 7 shows a front view of a fourth embodiment of a playback device showing a third surface ornamentation or icon;
FIG. 8 shows an isometric view of a fourth embodiment of a playback device showing a third surface ornamentation or icon;
FIG. 9 shows a front view of a fifth embodiment of a playback device showing a third surface ornamentation or icon;
FIG. 10 shows an isometric view of a fifth embodiment of a playback device showing a third surface ornamentation or icon;
FIG. 11 shows an isometric view of a first embodiment of a playback device showing a third surface ornamentation or icon;
FIG. 12 shows a top view of a first embodiment of a playback device showing a third surface ornamentation or icon;
FIG. 13 shows an isometric view of a second embodiment of a playback device showing a third surface ornamentation or icon;
FIG. 14 shows a side view of a second embodiment of a playback device showing a third surface ornamentation or icon;
FIG. 15 shows a side view of a third embodiment of a playback device showing a fourth surface ornamentation or icon;
FIG. 16 shows an isometric view of a third embodiment of a playback device showing a fourth surface ornamentation or icon;
FIG. 17 shows a front view of a fourth embodiment of a playback device showing a fifth surface ornamentation or icon;
FIG. 18 shows an isometric view of a fourth embodiment of a playback device showing a fifth surface ornamentation or icon;
FIG. 19 shows a front view of a fifth embodiment of a playback device showing a fifth surface ornamentation or icon;
FIG. 20 shows an isometric view of a fifth embodiment of a playback device showing a fifth surface ornamentation or icon;
FIG. 21 shows an isometric view of a first embodiment of a playback device showing a fifth surface ornamentation or icon;
FIG. 22 shows a top view of a first embodiment of a playback device showing a fifth surface ornamentation or icon;
FIG. 23 shows an isometric view of a second embodiment of a playback device showing a fifth surface ornamentation or icon;
FIG. 24 shows a side view of a second embodiment of a playback device showing a fifth surface ornamentation or icon;
FIG. 25 shows a side view of a third embodiment of a playback device showing a sixth surface ornamentation or icon;
FIG. 26 shows an isometric view of a third embodiment of a playback device showing a sixth surface ornamentation or icon;
FIG. 27 shows a isometric view of a first embodiment of a playback device showing a fourth surface ornamentation or icon;
FIG. 28 shows a top view of a first embodiment of a playback device showing a fourth surface ornamentation or icon;
FIG. 29 shows a front view of a fourth embodiment of a playback device showing a sixth surface ornamentation or icon;
FIG. 30 shows an isometric view of a fourth embodiment of a playback device showing a sixth surface ornamentation or icon;
FIG. 31 shows an enlarged isometric view of the second surface ornamentation or icon, the playback device has been removed for clarity of illustration;
FIG. 32 shows an enlarged isometric view of the first surface ornamentation or icon, the playback device has been removed for clarity of illustration;
FIG. 33 shows an enlarged isometric view of the fifth surface ornamentation or icon, the playback device has been removed for clarity of illustration;
FIG. 34 shows an enlarged isometric view of the second surface ornamentation or icon, the playback device has been removed for clarity of illustration;
FIG. 35 shows an enlarged isometric view of the fourth surface ornamentation or icon, the playback device has been removed for clarity of illustration;
FIG. 36 shows an enlarged isometric view of the sixth surface ornamentation or icon, the playback device has been removed for clarity of illustration;
FIG. 37 shows an enlarged isometric view of the seventh surface ornamentation or icon, the playback device has been removed for clarity of illustration; and,
FIG. 38 shows an enlarged isometric view of the eighth surface ornamentation or icon, the playback device has been removed for clarity of illustration.
The features shown in broken lines form no part of the claimed design. The curved break line in the drawings represent a symbolic break in the length. The appearance of any portion of the article beyond what is shown forms no part of the claimed design.