This is a brand new headset. It is still wrapped in the original box with a sealed plastic cover. I have not opened or used this headset. Bluetooth wireless connection. SHOKZ OpenComm2 - Open-Ear Bone Conduction Headphones, Wireless Bluetooth Computer Headsets with Noise Canceling Mic and Mute Botton for Work, Call, Meeting, 16 Hours Talk Time for Mobile & PC, Black