Does this cable support microphone pass-through?

Yes, the MP155 uses 4-conductor CTIA wiring that carries microphone, left audio, right audio, and ground simultaneously. This preserves full headset functionality when connecting to dual-jack (headphone + microphone) desktop PCs or older laptops.

Will my headset work with the MP155?

The MP155 is compatible with headsets wired to the CTIA standard, which is used by the great majority of modern headsets. If your headset uses the older OMTP wiring standard (microphone and ground reversed), it will not function correctly with this cable.

Can I customize length, color, or packaging for bulk orders?

Yes. Length, cable color, shell branding, and packaging are customizable for OEM/ODM orders. Contact Tonetron for custom specification details and minimum order quantities.

What is the difference between the MP155 and HMM155?

Both use the same CTIA wiring and 4-conductor configuration. The MP155 features a white PVC jacket and ABS shell for light retail/consumer use, while the HMM155 uses a flexible TPE jacket and aluminum shell for heavy daily desk handling.

Is this cable compatible with modern laptops and PCs?

This cable is designed for legacy systems with separate headphone and microphone jacks. Modern laptops and PCs typically have a single combined audio jack; for those, you do not need this splitter.

RCA/3.5mm Cable

3.5mm to 2 x 3.5mm Audio Cable - MP155

Name: 3.5mm to 2 x 3.5mm Audio Cable - MP155
Brand: Tonetron
SKU: MP155

White 3.5mm headset splitter, 4-conductor CTIA with microphone support, in ABS housing — the retail and consumer build for connecting a headset to separate PC sockets.

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Overview

The MP155 splits one 3.5mm plug into two 3.5mm sockets with 4-conductor CTIA wiring, so the microphone channel is carried alongside left and right audio rather than dropped.

That wiring is what makes it a headset splitter rather than a plain audio splitter. Desktop PCs and older laptops present two separate round jacks — headphone and microphone — while a modern headset ends in a single combined plug that fits neither properly. This cable is the adaptation, and without it the user gets sound with a dead microphone or a working microphone with no sound.

The white PVC jacket and moulded ABS housing place this model as the retail and consumer build: white reads as a computer accessory on shelf and in blister packaging, ABS keeps the part light and low-cost for volume programmes, and it colour-matches light desks and white PC peripherals. Where the cable will be handled heavily on a working desk every day, the HMM155 in the same range uses a flexible TPE jacket and an aluminium shell.

CTIA is the wiring standard used by the great majority of headsets, so it is the correct default; a headset built to the older OMTP arrangement swaps microphone and ground and will not behave correctly.

Each unit ships with one cable. Length, colour, branding and packaging are customisable for OEM/ODM orders.

Specifications

Spec	Value
Model	MP155
Connector	3.5mm
Cable material	PVC
Cable color	White
Shell material	ABS
Connectors	1 x 3.5mm plug to 2 x 3.5mm socket
Conductors	4-conductor
Standard	CTIA
Mic	Supported

Frequently Asked Questions

Does this cable support microphone pass-through?: Yes, the MP155 uses 4-conductor CTIA wiring that carries microphone, left audio, right audio, and ground simultaneously. This preserves full headset functionality when connecting to dual-jack (headphone + microphone) desktop PCs or older laptops.
Will my headset work with the MP155?: The MP155 is compatible with headsets wired to the CTIA standard, which is used by the great majority of modern headsets. If your headset uses the older OMTP wiring standard (microphone and ground reversed), it will not function correctly with this cable.
Can I customize length, color, or packaging for bulk orders?: Yes. Length, cable color, shell branding, and packaging are customizable for OEM/ODM orders. Contact Tonetron for custom specification details and minimum order quantities.
What is the difference between the MP155 and HMM155?: Both use the same CTIA wiring and 4-conductor configuration. The MP155 features a white PVC jacket and ABS shell for light retail/consumer use, while the HMM155 uses a flexible TPE jacket and aluminum shell for heavy daily desk handling.
Is this cable compatible with modern laptops and PCs?: This cable is designed for legacy systems with separate headphone and microphone jacks. Modern laptops and PCs typically have a single combined audio jack; for those, you do not need this splitter.