Bluetooth headset utilizing bone conduction technology. - Model Name: OpenComm Slate Grey ASC100 - Color: black - Type: Bone Conduction Stereo Bluetooth Headset Includes the headset itself, a charging cable, and instructions. I purchased this over two years ago, but I don't remember the exact date. I used this for work, but I'm selling it because I bought new earphones. Operation has been confirmed. Please check the photos for the condition, as there may be minor scratches from use, and purchase accordingly. Please understand that this is a used item. No claims and no returns accepted. Thank you.