We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Blue wired in-ear earbuds with inline microphone and 3.5mm plug

No Sew

No Sew LUDOS ULTRA Wired Earbuds Blue 3.5mm 16 ohm 92 dB 40g

SKU CH-9Q67-Y5G4Q

Wired in-ear earbuds with a 3.5 mm connector, 16 ohm impedance, 92 dB sensitivity, inline microphone, sound isolation and a 4.2 ft cord weighing 40 g

  • TypeIn-Ear
  • ColorBlue
  • Frequency Response20000 hertz
  • THDIn Ear
  • Input Impedance16 ohms
  • Signal to Noise Ratio(SNR)92 decibels
  • Crisp sound at 92 dB sensitivity
  • Inline mic and volume control for calls
  • Sound-isolating fit blocks background noise
  • Durable 4.2 ft cable with drawstring bag
  • Lightweight 40 g design for long sessions

Wired earbuds for daily use

The LUDOS ULTRA earbuds connect through a 3.5 mm plug and weigh 40 grams. They suit students, runners and anyone needing a simple in-ear headset with an inline microphone for calls or gaming chat. The 16 ohm impedance matches phone and laptop outputs directly.

Memory-foam tips and 4.2 ft cable

Memory-foam eartips create a seal that blocks outside sound without active electronics. The 4.2 ft cord reaches a pocket or armband without pulling, and the inline remote handles volume and call control. A padded drawstring bag is included for storage.

Passive isolation limits low-frequency noise

Sound isolation relies on the physical seal, so deep bass from traffic or engines still leaks through. The 3.5 mm analogue connection offers no digital processing or software EQ. Users who want wireless freedom or active noise cancellation need a different type of device.

Highlights

  • Crisp sound at 92 dB sensitivity
  • Inline mic and volume control for calls
  • Sound-isolating fit blocks background noise
  • Durable 4.2 ft cable with drawstring bag
  • Lightweight 40 g design for long sessions

Specifications

BrandLUDOS
ModelULTRA
Part NumberULTRA
TypeIn-Ear
ColorBlue
Frequency Response20000 hertz
THDIn Ear
Input Impedance16 ohms
Signal to Noise Ratio(SNR)92 decibels
Sensitivity92 decibels
Connector3.5mm
Ear CouplingSingle Ear
Cord LengthEartip
Weight40 grams
Noise Cancellingsound_isolation
Wireless TypeIR
Microphone Impedance16 ohm
Microphone Frequency Response20000 hertz
Microphone Signal to Noise Ratio(SNR)92 decibels
Microphone Sensitivity92 decibels
Featuressound_isolation, Tangle Free, Volume Control, touch, Wired, In Ear, dynamic_driver, 16 ohm, ULTRA Earphones
Package ContentsULTRA Earphones, Protective Case, Eartip, Cable

Questions about this item

How often do the memory-foam eartips need replacing on the LUDOS ULTRA?

The memory-foam eartips should be swapped every 3 to 6 months or when they lose their seal, keeping the 16 ohm drivers and 92 dB sensitivity performing as intended.

What is the first comfort limit during long sessions with the 40 g LUDOS ULTRA?

The single-ear coupling and memory-foam tips create ear-canal pressure that typically becomes noticeable before the 4.2 ft cable weight does.

How much heat or noise do the 16 ohm drivers produce when the LUDOS ULTRA runs all day?

Passive 16 ohm drivers generate no electronic heat or self-noise; only ambient sound isolation at 92 dB SNR and negligible warmth from the source device.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.