BENEFITS - A DC coupler (or dummy battery) allows you to continually power your camera from an outside power source. This means you can record longer sessions without swapping batteries, overheating, or losing power. Works perfect for vlogs, video conferencing, live streams, webcams, time lapse, live broadcasts, extended studio sessions, uploading files to PC, playing back media on a TV, and more.
SPECS - DC Coupler Input = 5V, 2A; DC Coupler Output = 4.2V, 2A; Coupler cord extends to approximately 42 inches long (107 cm)