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Black in-ear headphones with brushed aluminium shells, flat tangle-resistant cable and inline microphone

Fuji Labs

Fuji Labs AUFJ-PSQWBS306BK SQ306 In-Ear Headphone Black 10mm 16ohm 110dB 3.5mm 4.5ft

SKU CH-ZNWG-0MYGQ MPN AUFJ-PSQWBS306BK

In-ear headphones with 10mm beryllium-coated drivers, 16 ohm impedance, 110dB sensitivity, 10Hz-24kHz response, inline microphone, flat tangle-resistant 4.5ft cable and 3.5mm connector

  • Driver size10 mm
  • Frequency range10 Hz-24 kHz
  • Impedance16 ohms
  • Power supplyMax.Input Power: 10 mW
  • Audio sensitivity110 dB +/- 3 dB
  • Connection3.5 mm
  • Full-range audio from 10Hz to 24kHz frequency response
  • Clear vocals and deep bass via beryllium-coated 10mm drivers
  • Crystal-clear calls with -38dB in-line microphone sensitivity
  • Loud, efficient playback at 110dB sensitivity with 16-ohm impedance
  • Tangle-free 4.5ft flat cable with universal 3.5mm connector

Fuji Labs SQ306 In-Ear Headphones

The Fuji Labs SQ306 in-ear headphones use 10mm beryllium-coated drivers and a 3.5mm connector. They are built for listeners who want detailed audio reproduction from a wired source. The flat tangle-resistant cable runs 4.5 ft and ends in a standard stereo plug. An in-line microphone supports hands-free calls.

Installation and Common Issues

Plug the 3.5mm jack into any compatible audio port and select the silicone ear-tip size that seals your ear canal. The flat cable resists knots but can still snag on sharp edges if pulled tight. The microphone sensitivity is rated at -38 dB +/- 3dB, so positioning the in-line module near the collar improves voice pickup. Maximum input power is 10 mW; avoid driving the 16 ohm load beyond that level.

Compatibility Check

Verify that your device provides a 3.5mm stereo output with microphone contact if you need the headset function. The 110 dB sensitivity works well with portable players, phones and laptops without extra amplification. Frequency response spans 10Hz to 24kHz, so ensure your source material covers that range for full benefit. Exchangeable ear-tips are included to match different ear shapes.

How it compares

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

Price $38.99
Pricier than about 64% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameFuji Labs
Model nameAUFJ-PSQWBS306BK
Product typeIn-Ear
Product colorBlack
Audio & video
Driver size10 mm
Frequency range10 Hz-24 kHz
Impedance16 ohms
Audio sensitivity110 dB +/- 3 dB
Mic sensitivity-38 dB +/- 3 dB
Ports & slots
Connection3.5 mm
Power
Power supplyMax.Input Power: 10 mW
Size & build
Cord length4.5 ft (1.37 m)
Shipping weight0.16 kg
Package size197 × 95 × 40 mm

Other versions of this model

2 more in the same range

Questions about this item

How can I confirm the 10mm drivers are delivering the full 10Hz–24kHz range after setup?

Play a frequency-sweep test track; you should hear continuous output from the deepest bass up to the highest treble without gaps or harshness, and the in-line microphone should capture your voice clearly during a test call.

Which accessories are included and what must I provide separately?

The package includes the SQ306 earphones with a 4.5 ft flat tangle-resistant cable, 3.5mm connector, built-in microphone and exchangeable silicone ear-tips; you only need a device with a 3.5mm headset jack.

What distinguishes the SQ306 from other models in the lineup?

The SQ306 uses 10mm pure Beryllium-4 drivers rated at 16 ohms impedance and 110 dB sensitivity with a -38 dB microphone, aluminium alloy shell, 2.0 sound track tuning and a 4.5 ft cable — specifications not shared by other listed versions.

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