Here’s a summary & what I found / what to watch out for re: a “DJI Action 3/4/5 Mic, Lavaliere Clip‑On Type‑C Microphone, Professional without Needing a Mic Adapter, 1.5 m Cable” (based especially on the listing from “Design Info”) — plus related feedback from users and some caveats.
🔍 What the Design Info Listing Says
From DesignInfo, the claimed specs of this mic are:
High‑quality Type‑C recording mic made specifically for DJI Action 3/4/5 cameras; no external adapter needed. Design Info
Clip‑on lavalier style, 1.5 m cable (ample length for flexibility) Design Info
Omnidirectional pickup pattern (so picks up sound from all directions) Design Info
Sensitivity: – 35 dB ±3 dB Design Info
Signal‑to‑Noise Ratio (SNR): ~73 dB Design Info
Frequency response: ~35 Hz to 18 kHz Design Info
Comes with sponge windscreen and clip. Design Info
⚠️ Potential Issues / Things Users Report
From community / other listings:
There are many reports that the DJI Action cameras do not properly “see” certain USB‑C mics without using an external audio adapter, especially older models or cheaper mics. Some owners say that plugging in a Type‑C mic directly doesn’t always work. Reddit+1
The “plug‑and‑play” claims sometimes fail because the camera firmware / hardware may expect specific USB audio classes / chip sets. If a mic uses a less compatible USB audio chip, it may show as an external mic but not actually record audio, or record very weakly. Reddit+1
Also, wind & ambient noise remain a problem with lightweight lavs; even with windscreen or “fur,” clip placement matters a lot.
✅ What to Check / Test If Buying One
If you go ahead with this mic (or any similar Type‑C lav for DJI Action cam), here are things to verify:
Compatibility of the codec/chip
Confirm if the mic uses a USB audio profile compatible with DJI Action 3/4/5. Sometimes the listing won’t specify this, so customer reviews / tested videos help.
Signal strength & gain
Check how strong the input is: is the signal usable without a lot of gain? If you need to max out gain, noise floor might become bad.
Cable quality & length
The 1.5m length is good, but check build: strain relief near plug, shielding, etc.
Wind protection / clip design
A good windscreen (foam/fur) helps outdoors. The quality & fit of the clip (so it doesn’t rub/clank) matters.
Firmware updates
Make sure your DJI Action camera has the latest firmware; newer firmware might add better external mic support or patch bugs.
Return policy
Since some units may be faulty or incompatible, buying from a store with good return / exchange policy is safer.
💡 My Take
This type of mic — Type‑C lav for action cams — sounds ideal in theory (no adapter needed, less bulk, cleaner rig). But in practice, with many DJI Action models, user reports suggest that “plug & play” isn’t always reliable. Some mics work fine; others don’t get recognized or result in weak/distorted audio.
If I were buying, I’d try to see video/audio samples using that exact mic + your model (Action 3 / 4 / 5), or buy from a seller where I can test and return if it doesn’t record properly.