Brand: AfterShokz Model Name: OpenComm ASC100 Type: Bone Conduction Headphones Color: Black Accessories: Charging cable / Genuine case (300 yen discount available if you don't need the case) Bluetooth connection Thank you for viewing. Please check the images for the condition of the product. As this is a used item, there are some scratches and minor imperfections, but the exterior is in relatively good condition. Used about 5 times a month for nearly a year. [Reason for being junk] Audio can only be heard from the right side. Other functions, including the boom microphone, work without any problems.