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Black in-ear wireless earbuds with charging case

No Sew

No Sew I63 Bluetooth 5.4 Earbuds 14.2mm 48H Black

SKU CH-TWBT-3KCFZ

In-ear wireless earbuds with Bluetooth 5.4, 14.2 mm drivers, four ENC microphones and 48 hours total playtime

  • Driver size14.2 mm
  • Headphone styleIn Ear
  • Impedance32 ohms
  • Power supplyBattery, c, a, true
  • ConnectionNo Jack
  • Wearing styleSingle Ear
  • Immersive sound from 14.2mm dynamic drivers
  • Stable connection with Bluetooth 5.4 up to 15m
  • Clear calls via 4 ENC noise-cancelling microphones
  • Up to 48 hours total playtime with case
  • Quick 1.5-hour charge for 8 hours listening

Wireless earbuds with 48-hour case

The No Sew I63 are true-wireless in-ear headphones that use Bluetooth 5.4 for audio and calls. A 14.2 mm dynamic driver in each bud delivers stereo sound with 32-ohm impedance. The charging case extends total listening time to 48 hours and recharges in 1.5 hours.

Commuters and office workers needing long battery

Buyers who want extended playtime between charges and clear voice pickup from four ENC microphones will appreciate the 8-hour bud runtime and 15-metre wireless range. Listeners who require wired connectivity, aptX or LDAC codec support, or active noise cancellation should consider other models.

14.2 mm driver size

The 14.2 mm dynamic driver is the core component that determines bass depth, mid-range clarity and overall loudness. If your priority is maximum low-end impact or audiophile-grade detail retrieval, the driver diameter is the single figure to compare against alternatives.

How it compares

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

Price $15.99
Cheaper than about 70% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameAOSRAU
Model nameI63
Part numberI63
Product typeIn-Ear
Product colorBlack
Performance
Supported distance15 m
Audio & video
Driver size14.2 mm
Headphone styleIn Ear
Impedance32 ohms
Wearing styleSingle Ear
Noise cancellationSound isolation
Mic impedance~3K ohm
Connectivity
Wireless technologyBluetooth
Ports & slots
ConnectionNo Jack
Power
Power supplyBattery, c, a, true
Battery pack8 h
Run time8 h
Charging time1.5 h
Built-in batteryBattery
Size & build
Cord lengthPortable charging box x 1
In the box
In the boxCable, User Manual, Portable charging box x 1, I63 Headphones x 2

Questions about this item

How can I confirm the Bluetooth 5.4 link is active after pairing?

The earbuds automatically reconnect to the last device once paired; a stable connection within 15 metres and audio that stays in sync with video show the link is working.

What comes in the box and what must I buy separately?

The package includes the I63 earbuds, a portable charging case and three sizes of soft eartips (S/M/L); a USB-C charging cable and a power adapter are not included.

Which capacity version should I choose for the longest playtime?

The I63 model provides up to 48 hours total playtime with the charging case and 8 hours on a single earbud charge, so this version gives the maximum listening time available.

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