This is the first one? This is a bluetooth 3.0 earphone with EDR, I found it in an headphone forum. It's a uncommon headset with $57.19 price, which I think should have costed less. Though it is not from sony, akg and other famous brands, but tech and creativity produce value. This Bluetooth headset is designed with NFC chip just like that is built in cellphone, and this new function make headset and cellphone have a quick conversation compared with bluetooth! NFC chip works when you place headset and cellphone with 10cm distance, actually, NFC response between Headset and cellphone to make a quick pair of bluetooth without searching, clicking pairing and typing code. Just a touch, bluetooth pair between two devices. Post here, just share this new tech with you, I have three headphones at home, but this one is really fresh to me, prepare to own mine!