Hetai Tech 3.5 mm Microphone Adapter Cable Two 3-Pole TRS Female to One 4-Pole TRRS Male 20 cm
Splits a 3.5 mm combo jack into separate headphone and microphone ports for older accessories, 20 cm long
- Connection typeMicro USB to USB A
- Splits one 3.5 mm combo jack into separate headphone and microphone ports
- Connects older audio accessories to newer smartphones and tablets
- Gold-plated connectors resist corrosion for reliable signal transfer
- TPE jacketed cable withstands daily bending and coiling
- Compact 20 cm length fits easily in a laptop bag
Splitter for combo audio ports
This 20 cm cable converts a single 3.5 mm TRRS socket into separate 3.5 mm TRS jacks for headphones and a microphone. It lets owners of legacy headsets connect to modern laptops, tablets and smartphones that only provide a combined port. The gold-plated plugs and TPE jacket are built for frequent insertion and removal.
Passive design means no power draw
The adapter contains no active electronics, so it adds no measurable power consumption, heat or noise to the host device. Signal quality depends entirely on the source and the connected headset. Its short length keeps cable resistance low and avoids the clutter of longer splitter cords.
Enables external mic selection on iOS
The wiring arrangement allows iPhone and iPad models to recognise an attached external microphone as the default audio input automatically. This solves the common issue where the internal microphone remains active despite a headset being plugged in. No driver or software installation is required on any supported platform.
How it compares
Measured against everything we stock in USB Cords & Extension Cables, at today’s prices. Recalculated every night.
- Price $12.99
- Cheaper than about 70% of the 15,227 comparable items (median $14.99).
Specifications
| Ports & slots | |
|---|---|
| Connection type | Micro USB to USB A |
Questions about this item
How do I plug the 3.5 mm TRRS male end into my smartphone without reversing the headphone and microphone connections?
Insert the single 3.5 mm male plug fully into the combo port; the cable splits it into two labelled 3.5 mm female jacks — one for headphones, one for a microphone — so each accessory goes into its correct socket.
Will the gold-plated plugs or TPE jacket need any cleaning or replacement over time?
The gold-plated contacts resist oxidation; occasional dry wiping keeps them reliable, and the TPE jacket requires no scheduled replacement under normal use.
At what point does the 20 cm length become a limiting factor during extended recording sessions?
The short 20 cm reach restricts the distance between the device and the user, so movement is constrained as soon as the cable is taut.
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