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White in-ear earphones with USB-C connector and inline microphone, retractable cable design

Mi Puremic 668 ME537 USB-C In-Ear Earphones White

SKU CH-Q4NZ-RSMNB

USB-C in-ear earphones with a built-in DSP chip, 70 dB SNR and passive noise cancellation for streaming, calls and music

  • Headphone styleIn Ear
  • ConnectionUSB
  • Wearing styleSingle Ear
  • Noise cancellationPassive
  • Product typeIn-Ear
  • Product colorWhite
  • Crystal-clear calls with 70 dB signal-to-noise ratio
  • Bluetooth dual-phone streaming for live background music
  • One-touch mode switching for streaming, karaoke, music and bass
  • Plug-and-play USB-C with built-in DSP and metal mic
  • Lightweight 0.13 lb in-ear design with passive noise cancellation

Mi Puremic 668 ME537 USB-C In-Ear Earphones

These wired USB-C in-ear headphones include a built-in DSP chip and premium metal microphone for clear calls and HiFi stereo sound. They suit streamers, singers and gamers who want plug-and-play audio with passive noise cancellation and a retractable cable. The hybrid driver design supports multiple modes including live streaming, karaoke and music listening switched by a single multifunction button.

USB-C wired connection with Bluetooth pairing limit

The earphones connect to a host device through the USB-C port for audio and power, while a secondary Bluetooth link can pair a second phone for background music during a stream. This dual-device workflow requires one phone cabled and the other paired wirelessly to the Pure668 profile; it does not replace a standard standalone Bluetooth headset for everyday wireless use.

70 dB signal-to-noise ratio decides fit

A 70 dB high SNR suppresses background noise for crystal-clear calls and lossless HiFi stereo performance. Buyers who need a higher SNR for professional studio recording or broadcast-grade voice capture should look elsewhere. The single-ear coupling and 0.13-pound weight complete the specification that determines whether this model matches the intended use.

How it compares

Measured against everything we stock in Earbuds & Over-Ear Headphones, at today’s prices. Recalculated every night.

Price $30.99
Pricier than about 56% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameMi
Model nameWired Earbuds, Puremic 668, ME537
Part numberME537
Product typeIn-Ear
Product colorWhite
Audio & video
Headphone styleIn Ear
Wearing styleSingle Ear
Noise cancellationPassive
Connectivity
Wireless technologyOther
Ports & slots
ConnectionUSB
Size & build
Product weight0.13 lb (0.06 kg)

Questions about this item

Which model number should I choose between the ME537 and the Puremic 668?

They are the same product — ME537 is the part number and Puremic 668 is the marketing name.

What does the 70 dB signal-to-noise ratio mean for my recordings?

It indicates a very low noise floor so vocals and instruments come through cleanly without audible hiss.

How does the USB-C connection limit what I can plug these into?

They only work with devices that have a USB-C port supporting digital audio output.

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