SOURCEPRO
SOURCEPRO 3.5 mm 4-Position to 3-Position Audio Aux Cable with Mic & Volume Control
A 3.5 mm aux cable with inline microphone and volume controls connects a smartphone headset jack to car or speaker aux inputs
- Connector TypeUSB A to USB A
- Hands-free calls with built-in microphone on 3.5 mm cable
- In-line volume and playback control via three-button remote
- Wide compatibility with 4-pole to 3-pole adapter for phones and aux inputs
- Durable copper-core construction for clear audio transmission
- One-metre length suits car, desktop and portable setups
What this cable does
This 3.5 mm aux cable converts a four‑position headset jack into a standard three‑position audio plug while adding an inline microphone and volume controls. It lets a smartphone or portable player feed music to a car stereo, home system or powered speakers and still handle voice calls through the built‑in mic.
Behaviour during long sessions
High‑quality copper conductors keep signal loss low even when the cable stays plugged in for extended listening or calls. The ABS housing resists wear from repeated insertion and the one‑metre length prevents strain on device ports during daily use.
Installation notes and common issues
Simply plug the four‑position end into the phone headset port and the three‑position end into any 3.5 mm aux input; no drivers or power are required. The inline buttons control volume, playback and calls, but the three‑position output cannot pass the microphone signal to devices that expect a four‑pole connection.
Highlights
- Hands-free calls with built-in microphone on 3.5 mm cable
- In-line volume and playback control via three-button remote
- Wide compatibility with 4-pole to 3-pole adapter for phones and aux inputs
- Durable copper-core construction for clear audio transmission
- One-metre length suits car, desktop and portable setups
Specifications
| Connector Type | USB A to USB A |
|---|
Questions about this item
Will the inline microphone and volume controls on this 3.5 mm cable draw any power or generate heat during all-day use?
No, the cable is entirely passive with no active electronics, so it draws zero power and produces no heat regardless of how long it is used.
What device ports must I already have to use the 4-position plug and 3-position plug on this audio cable?
You need a 3.5 mm TRRS headset jack on your phone or media player for the 4-position end and a standard 3.5 mm TRS aux input on your car stereo, speaker or sound card for the 3-position end.
Will the inline remote buttons on this cable work with an older car stereo that only has a basic 3.5 mm aux input?
The remote controls volume, playback and calls on the source device; the car stereo simply receives the audio signal, so the buttons function regardless of the stereo's age or features.
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