Name: DJI Osmo Action 3.5mm Audio Adapter
SKU: 24288
Availability: InStock

DJI Osmo Action 3.5mm Audio Adapter Overview

The DJI Osmo Action 3.5mm Audio Adapter (model CP.OS.00000280.01) is a compact USB-C to 3.5mm TRS accessory launched in 2022 for the Osmo Action 3 and 4 series (also compatible with Action 5 Pro via firmware), enabling external microphone input for enhanced audio during action footage. It plugs directly into the camera’s USB-C port, allowing connection of 3.5mm stereo or mono lavalier mics, shotgun mics, or wireless systems for clearer vocals over wind noise—ideal for vlogs, motorcycling, or sports. The adapter maintains waterproofing only when the USB-C cover is closed (mic use voids it temporarily). It supports charging via the expanded USB-C port simultaneously. As of November 15, 2025, it’s a must-have for audio pros, with third-party alternatives like Qmint available for budget options.

Key Specifications

Feature	Details
Connector Type	USB-C (to camera) to 3.5mm TRS jack (mic input)
Compatibility	DJI Osmo Action 3, Action 4, Action 5 Pro; supports stereo/mono 3.5mm TRS microphones (e.g., lavalier, shotgun); not for Action 1/2 or output/headphones
Audio Support	Mic input only (no audio output); clear vocal recording up to high-speed activities; no built-in preamp
Power/Charging	Expanded USB-C port allows simultaneous charging (PD/QC compatible) while using mic
Build & Durability	Compact aluminum/plastic design (~10g); secure fit; operating temp: 0–40°C (32–104°F); voids waterproofing when USB-C port is open
Dimensions	Approx. 30 x 20 x 10 mm
Extras	No app integration; plug-and-play

Pros and Cons (Based on Reviews)

Pros	Cons
Enables pro mic input for wind-resistant audio in action shots	Voids waterproofing (must reseal USB-C cover after use)
Compact and secure; allows charging during recording	Mic input only (no headphone monitoring or output)
Affordable official accessory; works with most 3.5mm mics	Short cable (~10cm) limits mic placement
Plug-and-play with no lag	Not compatible with older Action 1/2 models

What Reviewers Are Saying

DJI Store (Ongoing): “Supports 3.5mm mic input for high-quality vocals during motorcycling—customized for secure connection on Osmo Action series.”
B&H Photo (Oct 2025): “Adds mic to Action 4 for motovlogs—stereo/mono support; USB-C for charging while recording, but note no waterproofing with port open.”
Amazon Users (2025): “Great for external mics on Action 3/4—clear audio upgrade; Qmint third-party works too, but official feels more premium.”
DroneNerds (2025): “Essential for improved vocal recording on Action 4—secure fit, but reseal cover to maintain IP rating.”

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DJI Osmo Action 3.5mm Audio Adapter