Link to video of Jeon Ji Hyunm doing a funky dance in the ad: http://www.akihabaranews.com/en/news-11797-.html
Jeon Ji Hyunm from "my sassy girl", and "Siworae" in the KTV ad for the AnyCall bluetooth headsets.
9 grams
cost $70
look like oversize earing
source: http://gizmodo.com/gadgets/cellphones/s ... 177846.php