tools/object_settings/marker_settings_headphones.json

{
    "gender": "unknown",
    "markersets": [
        {
            "distance_from_skin": 0.0002,
            "indices": {
               "headphones2": 31859,
               "headphones4": 46885,
               "headphones6": 9718,
               "headphones5": 26251,
               "headphones3": 28667,
               "headphones1": 9050,
               "headphones7": 9996,
               "headphones8": 9559
            },
            "marker_radius": 0.0032,
            "type": "object"
        }
    ]
}