$2 each for the 3 wired: yellow (no name) and black (Skullcandy) and other black with volume and microphone control.
$1 each for the other 7 which are just earbuds.
All are clean.
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$5 -3.5mm headset splitter cable with one 4-pole TRRS female jack on one end and two 3-pin TRS male plugs for microphone and audio) on the other.