PB-4000 Anode Power Charger. The Zoom Power Anode offers the perfect solution for power as it incorporates both a power bank and AC adaptor. Simply open the prongs and use as an AC adaptor. The Anode will charge itself while plugged into a wall socket. Unplug with a full charge and the Anode will act as a power device with 4400mAh at 5V/1A. LED indicator shows remaining charge by pressing button. Cable wrap included and packed in a Zoom gift box.