The Replay XD XD720 Hardwire Car Adapter is perfect for supplying constant power to your camera for endurance events and activities. It comes with a 4m long cable with an attached car adapter. The adapter also includes a 3.5mm mini jack to plug in an external audio source. With a 32GB microSDHC card and the Hardwire adapter you can capture up to 15 hours of continuous video. The Car Adapter can be cut off to expose the red wire (positive 12-24V) and white wire (ground), this can be hardwired to a 12-24V DC power source.