The ornamental design for a cordwinder for wirelessheadset, as shown and described.
1. Cord winder for wireless headset
1.1 is a front perspective view of a cord winder for a wireless headset showing our new design;
1.2 is a front view thereof;
1.3 is a back view thereof;
1.4 is a left view thereof;
1.5 is a right view thereof;
1.6 is a top view thereof;
1.7 is a bottom view thereof;
1.8 is an exploded view thereof;
1.9 is a reference view thereof, shown in an environment of use; and
1.10 is a reference view thereof, shown in a second environment of use
The broken lines depict portions of the cord winder for wireless headset and environmental structure that form no part of the claimed design.
The wavy symbols depict a symbolic break in length. The appearance of any portion of the article beyond the break line forms no part of the claimed design.