Samsung Gear Circle Bluetooth headphones now available in US in limited quantities | Android and Me. Necklace headsets are becoming more popular, as people figure out their utility and quality. I love the sound quality of the Harman Kardon speakers on my LG headset. The Circle ability to magnetically clasp around the neck is a very cool design, however, and I might take a long look if I weren't so happy with the LGs. Retractable earbuds and the lack of weight on the head are big selling points for these necklace headsets; and, my bet is that you will be seeing more of them.