The Replay XD RePower Battery Adapter 5V Only is perfect for supplying external battery power to your camera for endurance events and activities. You can use the RePower 2200 (3+ hours) or RePower 4400 (6+ hours) Battery Pack to charge or give your camera that extra juice. The adapter also includes a 3.5 mm mini jack to plug in an external audio source. With a 32GB microSDHC card and the RePower Battery Adapter you can capture extended video and time-lapse photos.