The 20' Remote Audio ENG Breakaway Cable with Timecode for The Sound Devices 633 transmits stereo audio over a pair of balanced XLR connectors and uses a dedicated 5-pin LEMO M to BNC RA plug to transmit timecode from your camera to the Sound Devices recorder. It also features a stereo return for sending the signal back to the camera. The cable comes with a carabiner for wrapping the extra slack and attaching the breakaway cable to equipment or a belt while on set.