What is dji-mic-wispr-flow?

Dji mic wispr flow is a small macOS tool that turns the linking button on a DJI Mic Mini 2 wireless microphone transmitter into a remote control for a dictation app called Wispr Flow. If you clip the microphone to your collar, pressing its button starts hands free dictation, and pressing it again stops the recording and inserts the transcribed text wherever your cursor is. Because the signal travels over DJI's own wireless link rather than Bluetooth, it works from across a room. Installation is a single command that downloads and runs a script. That script installs a tool called Karabiner Elements if it is not already present, and it merges its own rule into your existing Karabiner setup so nothing you already have configured is lost, backing up your old settings first. After installing, you need to approve a driver extension and turn on Input Monitoring permission for Karabiner in your Mac's privacy settings. Once the DJI receiver is plugged in over USB-C and Wispr Flow is set to use it as the microphone, pressing the transmitter's button triggers Flow's hands free shortcut, which defaults to Fn plus Space but can be changed to a different key combination when running the installer. Under the hood, the DJI microphone's receiver has a feature meant for taking photos remotely: pressing the transmitter's button makes the receiver send a volume key press over USB. Karabiner Elements watches for that specific key press, but only from the DJI device, and remaps it to Wispr Flow's dictation shortcut instead of letting it change the Mac's system volume. This only works when the receiver is connected by USB-C, since Bluetooth only mode does not expose these button presses. The repository is mostly a shell script for installing and merging the Karabiner configuration, along with a reference copy of a fully working setup file. It is a small project with 9 stars, written primarily in Shell script, and credits a similar project that captures the same button press for macOS's built in dictation feature instead of Wispr Flow.