These are wireless earphones from SONY. [Product Contents] ・Main unit ・Charging case & cable ・Instruction manual I believe they function, but I haven't used them recently, so I don't know how long the battery lasts. Since the recent operation has not been confirmed, I am selling them as junk. Please purchase with the assumption that you will use them for parts or repair. Please check the images carefully and understand that they are junk before purchasing. If you are looking for a condition similar to new, please refrain from purchasing. - Brand: SONY - Model Name: LinkBuds - Accessories: Charging case, USB cable, Instruction manual - Color: White Thank you for viewing.