The third one is definitely a full headset:

http://www.aliexpress.com/item/Bluetooth-Headset-Music-Stereo-Earphone-Noise-Canceling-Mini-Ultra-Thin-Slim-USB-Charging-Metal-233621-B300/1967630360.html?ws_ab_test=201407_5,201444_5,201409_1

You can see the hole from the mic on some of the shots.
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