(I still would not rule out completely that there is a possibility that those bulges might have also concealed some other contraption like a receiver and wire for earpiece. If you do a Google image search for a "lavalier microphone", you will see that all the images they show for those mics/packs include a wire that seems quite a bit thinner than the "wire bulge" on Hillary's back, and that her wire also seems irregular, while all the photos in the Google image search are just plain, straight thin wires. Hillary's thicker "wire" looks like it might possibly be multiple wires intertwined, possibly indicating multiple functions. Holt/NBC were obviously on Hillary's team, and how better to conceal a cheating device than to merge it with a legitimate device, sort of like the alternate use being used for a book, shown below. NBC/Hillary's team could have taped a receiver to the box/pack for the lavalier microphone, and wrapped an earpiece wire around the wire for the lavalier microphone, and at her neck and under her hair, one wire could be diverted to her ear, and the other one could be connected to the mic in her front. That said, it is probably much more likely that the bulges were just a lavalier microphone like LegendHasIt said, and it is probably fruitless in any case to pursue other possibilities, unless someone on the inside at NBC or Hillary headquarters leaks something nefarious.)
