For sale: SONY WF-1000XM4 ・Right earbud: Non-functional (will not power on / does not work) * It is unknown whether the battery is faulty or the unit is broken. ・Left earbud: Works ・Charging case: No noticeable scratches, in relatively clean condition Since the right earbud is unusable, this item is being sold as junk. Please consider this for repair or parts. Please purchase only if you understand that this is a junk item. Thank you for looking.