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Pair of black open-ear clip-on earbuds with attachable ear grips

No Sew

No Sew C30i Open-Ear Clip-On Headphones Black 30H IPX4

SKU CH-4RF6-3P9MF

Open-ear clip-on headphones with 12mm × 17mm drivers, attachable ear grips, IPX4 water resistance and 30-hour battery life

  • Battery runtime30 h
  • Spec summaryC30i, Clarity Black, Wireless
  • Display typeUniversal Phone Control
  • Playback optionsVolume Control, Touch, touch
  • Wireless technologyBluetooth 5
  • Speaker typeDynamic driver
  • Open-ear design keeps you aware of surroundings
  • 30-hour battery life powers extended listening sessions
  • 12mm × 17mm racetrack drivers deliver clear audio
  • IPX4 water resistance handles sweat and light rain
  • Non-deforming hard-shell clip ensures secure fit

Open-Ear Clip-On Headphones

The No Sew C30i uses an open-ear clip-on design that leaves the ear canal free while delivering audio. This makes them suitable for runners, commuters and office workers who need to stay aware of traffic, announcements or colleagues while listening to music or taking calls.

Hard-Shell Build With Attachable Ear Grips

A non-deforming hard-shell frame retains its shape for a consistent fit during repeated use. Optional ear grips snap on for extra stability during high-intensity workouts, and the IPX4 rating protects against sweat and light rain. Touch controls on the body handle playback and volume without reaching for a phone.

30-Hour Battery Life And 12mm × 17mm Drivers

The racetrack drivers with titanium-coated diaphragms provide clear sound in an open-ear format. Thirty hours of total play time reduces charging frequency for daily commutes or long training sessions. Bluetooth 5 connects to phones, tablets and laptops for wireless listening without cables.

How it compares

Measured against everything we stock in Earbuds, Earphones & Mini Speakers, at today’s prices. Recalculated every night.

Price $41.99
Typical for this category: the median of 231 items is $40.99.
Battery runtime 30 h
Lower than about 60% of the 87 comparable items (median 35 h).

Specifications

Product
Brand nameSoundcore
Product lineC30i
Model nameC30i
Part numberA3330Z11
Product typeOpen Ear
Product colorBlack
Display
Display typeUniversal Phone Control
Audio & video
Playback optionsVolume Control, Touch, touch
Speaker typeDynamic driver
Connectivity
Wireless technologyBluetooth 5
Power
Battery runtime30 h
Built-in batteryCell, true, batteries contained in equipment
Size & build
Size and weight10m
Compatibility
MP3 supportCellphones, Desktops, Laptops, Tablets
More details
Remote controllerVolume Control

Questions about this item

How does Bluetooth 5 perform with the C30i in real use?

Bluetooth 5 delivers a stable wireless link for music and calls, maintaining connection through walls and across a typical room without dropouts.

What ear shapes do the clip-on arms and attachable grips suit?

The firm-shell clip arms hold their curve for most outer-ear contours, while the included grips add friction for smaller or flatter ears during vigorous movement.

How do you pair the C30i and what step causes failures?

Open the case, hold the button until the LED flashes, then select the headphones on the phone; forgetting to hold long enough is the common mistake.

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