Wireless microphone
Also known as: wireless mic, wireless lav, DJI Mic, Rode Wireless GO
A small transmitter clipped near the speaker's mouth that sends voice by radio to a receiver on the camera, so speech stays clear at a distance.
Updated
What it means
A camera's built-in mic hears everything around it equally, which is why talking at a GoPro on a windy ridge produces mostly wind. A wireless kit moves the microphone to the speaker and sends the signal back without a cable.
Modern compact kits such as the DJI Mic series and Rode Wireless GO use a digital 2.4 GHz link. The transmitter often has a microphone built into its body and can also take a separate Lavalier microphone for a hidden look.
For Self-filming, vlogs and coaching clips, this is the single biggest audio upgrade available, far more than a better camera.
How it works in practice
Clip the transmitter a hand's width below the chin, facing the mouth, and fit the furry Windscreen (dead cat) outdoors. On a bike or skis, tuck it under a jacket collar to keep air off the capsule.
The receiver plugs into the camera's mic input or a phone's USB-C port. Some cameras pair directly: the DJI Osmo Pocket 3 can take a DJI Mic 2 transmitter without a separate receiver, while a GoPro Hero 11 needs a mic adapter or the Media Mod.
Turn on internal backup recording in the transmitter if the kit offers it. If the radio link drops behind a body or a hill, the onboard copy still has the words.
What to watch out for
Clothing rustle and Wind noise ruin more takes than radio dropouts do. Test with the jacket you will actually wear, at the speed you will actually move.
Batteries run out quietly, and many receivers give no warning on the camera screen. Charge the case before a long day, and carry a Power bank since most kits charge over USB-C.
Backup files sit in the transmitter, not the camera, so they need Audio sync later. A clap at the start of each take makes lining them up much easier. Keep levels moderate, because a shout into a sensitive mic clips and cannot be recovered.
How RawClip handles it
RawClip does not fix or mix audio, and a finished highlight is built around its generated soundtrack, which you can switch off when speech should carry the edit. A backup recording kept inside the transmitter is not merged in, so get clean voice into the camera file itself.