Custodia batteria esterna AA per Walkman Sony MD WM-EX600 EX610 EX621 EX631
WM-EX600 EX610 EX621 EX631. not including AA battery. 1x AA Battery case（not including battery）. Note,this Battery Case has no DC Input. WM-GX711 WM-EX622 WM-FX822 WM-GX822 WM-FX833 WM-RX822. WM-EX910 EX2000 EX921.