Replay XD 40-8004494

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.

Shorty 80 mm (3.1 in) [No External Audio In, Only Internal Audio]
-Great for mounting on helmets with a very short connection or the ability to quick charge your Prime X