UGREEN 10789 3.5 mm Headphone and Microphone Splitter

Overview

A PC headset with two plugs, or a pair of headphones plus a separate microphone, can work on a phone, tablet or laptop that has only one combined headset socket. The UGREEN 10789 is a 20 cm passive splitter: its four-pole (TRRS) 3.5 mm plug goes into the combined socket and two labelled 3.5 mm sockets take the headphone and microphone plugs. All the audio processing stays in the host device, so there is nothing to install.

Is it right for you?

• Suits phones, tablets and laptops with a combined 3.5 mm headset jack that carries stereo output and microphone input.
• Suits compatible PS4-style and Xbox controllers with a four-pole headset jack; older controllers or adapters can differ.
• Works with some USB-C or Lightning audio dongles, but only those that support microphone input with the same headset pinout. A playback-only dongle will not pass the microphone.
• Not for optical, USB, balanced pro audio or XLR microphones, and not for a host that has only a stereo headphone output.
• It does not split one stereo output between two pairs of headphones.

Key features

• One 3.5 mm four-pole TRRS male plug for the host device.
• Two 3.5 mm female sockets marked with icons: headphone output and microphone input.
• About 20 cm branch cable with a TPE jacket and compact moulded housings.
• Gold-plated connector surfaces.
• Passive: no driver, power, controls, sound card or digital converter.

What else you need

A host with a combined 3.5 mm headset jack and either a dual-plug PC headset or stereo headphones plus a 3.5 mm microphone. Nothing else is needed.

Before you buy

• CTIA and OMTP four-pole layouts are not interchangeable without a suitable adapter. The splitter does not detect or rearrange contacts.
• It does not add microphone support to a headphone-only jack or repair a disabled host input, and it does not provide phantom power for XLR or condenser microphones.
• Operating system privacy permissions and app input selection can block the microphone even when the wiring is correct.
• Start at low headphone volume, especially with microphone monitoring on: feedback can occur if a live microphone is close to speakers.
• Stop using it if a plug, socket or branch is cracked, loose or exposes conductors.