Designed for use with the Blackmagic Video Assist 4K Recorder, the Blackmagic 2 Mini XLR to XLR Audio Cables for Video Assist 4K (19.5”) can be used for sending normal XLR audio into the recorder from external microphones. Audio quality is immediately improved by eliminating issues with auto gain controls on DSLR cameras. Sound is recorded into the same file with the video.