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Small white dongle with USB-C plug, 3.5mm jack and USB-C port

Hetai Tech

Hetai Tech USB-C to 3.5mm + USB-C DAC Adapter

SKU CH-4M6F-X47N1

Adds a 3.5 mm headphone jack and a USB-C charging port to USB-C devices, with 16-bit 48 kHz DAC and PD 3.0 fast charge

  • Connector TypeMicro USB to USB A
  • 2-in-1 adapter lets you listen and charge simultaneously
  • Built-in DAC UC02 chip delivers 16-bit/48 kHz high-definition audio
  • Supports PD/QC 3.0 fast charging while using headphones
  • Automatic OMTP/CTIA switching enables calls and music on any headset
  • Compatible with iPad Pro, Galaxy S/Note, Pixel and many USB-C devices

What this adapter does

A two-in-one dongle adds a 3.5 mm headphone jack and a USB-C charging port to phones and tablets that lack a built-in audio socket. It is aimed at listeners who want wired headphones while keeping the device powered during long sessions.

Audio specification that matters

The built-in UC02 DAC delivers 16-bit depth at a 48 kHz sampling rate, so the analogue output quality is fixed by that conversion stage. Buyers who need higher-resolution playback or a different DAC implementation will not get it from this unit.

What the extra port changes

The female USB-C connector supports PD and QC 3.0 fast charging, allowing the host device to charge while audio plays or calls continue. Users whose devices cannot negotiate those protocols will only receive standard charging speeds.

Highlights

  • 2-in-1 adapter lets you listen and charge simultaneously
  • Built-in DAC UC02 chip delivers 16-bit/48 kHz high-definition audio
  • Supports PD/QC 3.0 fast charging while using headphones
  • Automatic OMTP/CTIA switching enables calls and music on any headset
  • Compatible with iPad Pro, Galaxy S/Note, Pixel and many USB-C devices

Specifications

Connector TypeMicro USB to USB A

Questions about this item

How does the 16-bit 48 kHz DAC chip affect the audio I hear through the 3.5 mm jack?

The built-in UC02 chip decodes digital audio at 16-bit 48 kHz resolution, delivering clear, detailed sound to any standard headphones plugged into the 3.5 mm port.

What charging speeds does the USB-C port on the adapter actually support while I listen?

The adapter passes through PD and QC 3.0 fast-charge protocols, so the host device can charge at its normal rapid rate while audio plays.

Will this adapter fit inside a snug phone case without blocking the neighbouring ports?

The compact 2-in-1 dongle plugs directly into the device’s USB-C socket; its slim profile leaves adjacent ports accessible on most handsets.

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