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Two pairs of black in-ear wired earbuds with USB-C plugs and inline remote controls

SuperTooth SKFASTC-US127 USB-C Wired Earphones 2 Pack Black

SKU CH-SG5B-0SNNA

Two-pack USB-C wired in-ear earphones with inline remote and microphone, compatible with iPhone 15-17, Galaxy S20-S26 and Pixel 4-9 devices

  • ColorBlack
  • SpecificationsSKFASTC-US127, Matsusho, White, 0 ohm, none, Wired, NO, dyna
  • CompatibilityCompatible for iPhone 17/17 Pro/17 Pro Max/Air/16/16 Plus/16
  • Featuresremote, Wired, not_water_resistant, In Ear
  • Apple MFi certified for reliable iPhone 17/16/15 audio
  • Built-in DAC chip delivers high-resolution sound without buzzing
  • Inline remote controls volume, tracks and calls hands-free
  • Ergonomic in-ear fit with magnetic anti-tangle design
  • Two-pack value with 36-month worry-free coverage

Wired USB-C earphones with built-in DAC

The SuperTooth SKFASTC-US127 earphones connect through a USB-C plug and include an internal DAC chip for direct digital audio. Each pack contains two black in-ear sets with inline remote controls and microphones. The 4FT cables use oxygen-free copper cores and TPE jackets for durability. Apple MFi certification ensures full compatibility with supported iOS devices.

Suited for USB-C phone

Commuters, students and office workers who want plug-and-play listening with call controls will find these convenient. Buyers who need wireless freedom, active noise cancellation with dedicated ANC hardware, or audiophile-grade balanced cables should look elsewhere. The wired design also does not suit devices that lack a USB-C audio interface.

Two pairs provide spare or shared listening capacity

Dual units cover a backup set or a second user without extra purchases. The integrated DAC handles standard music streaming and voice calls cleanly. High-impedance headphone loads or professional recording workflows requiring external interfaces will exceed what these earphones can deliver. The 36-month coverage period reflects the manufacturer's confidence in daily use.

Highlights

  • Apple MFi certified for reliable iPhone 17/16/15 audio
  • Built-in DAC chip delivers high-resolution sound without buzzing
  • Inline remote controls volume, tracks and calls hands-free
  • Ergonomic in-ear fit with magnetic anti-tangle design
  • Two-pack value with 36-month worry-free coverage

Specifications

BrandSuperTooth
SeriesSKFASTC-US127
ModelSKFASTC-US127
Part NumberSKFASTC-US127
ColorBlack
SpecificationsSKFASTC-US127, Matsusho, White, 0 ohm, none, Wired, NO, dynamic_driver, remote
CompatibilityCompatible for iPhone 17/17 Pro/17 Pro Max/Air/16/16 Plus/16 Pro/16 Pro Max/15/15 Plus/15 Pro/15 Pro Max, Galaxy S26/S26+/S26 Ultra, S25/S25+/S25 Ultra, S24/S24+/S24 Ultra, S23/S23+/S23 Ultra, S22/S22+/S22 Ultra, S21/S21+/S21 Ultra, S20/S20+/S20 Ultra, S20 Z Flip, S10 S9 S8 Plus, Note 20/10; iPad Pro 12.9/11 inch, iPad mini 6, iPad Air 4/5th, Macbook, Mackbook Air; Pixel 9/9 Pro/9 ProXL/8/8A/8 Pro/7/7a/7 Pro/6/5/4/3/2 XL and more
Featuresremote, Wired, not_water_resistant, In Ear

Questions about this item

Do these USB-C earphones work straight from my iPhone 15 without any adapter or dongle?

Yes — the USB-C plug connects directly to the iPhone 15 port and the built-in DAC handles the audio conversion, so no extra adapter is needed.

If I keep using my older Galaxy S21 alongside a newer phone, will the inline remote still control volume and tracks on both?

The remote is designed for USB-C devices including the Galaxy S21, so volume, track skip and call functions work the same way on that handset.

How can I confirm the earphones are delivering the high-resolution audio the built-in DAC promises after I plug them in?

Play a high-bitrate track and listen for clean, noise-free sound with distinct instrument separation; the absence of buzzing or popping indicates the DAC is operating correctly.

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