The Koss VC20 Volume Control Cord helps you control the volume of your music with this convenient volume control accessory. It provides convenient level adjustment from any headphones. The VC20 connects to any 3.5 mm. auxiliary headphone output.
The Koss VC-20 volume control can be used with any music player. A convenient pocket or belt clip lets you position the VC-20 where it's most comfortable for you.