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Black in-ear Bluetooth 5.4 earbuds with charging case

No Sew

No Sew I13 Bluetooth 5.4 Earbuds 40H 3.8g

SKU CH-K642-HQ15W

Bluetooth 5.4 in-ear buds with 13 mm drivers, active noise cancelling and 40 hours total playtime at 3.8 g each

  • Driver size13 mm
  • Frequency range20000 Hz
  • Headphone styleIn Ear
  • Signal-to-noise ratio-50 decibels
  • Power supplyBattery, a, lithium polymer, true
  • Audio sensitivity-50 decibels
  • Bluetooth 5.4 gives faster pairing and stable range
  • 40 hours total playtime with the charging case
  • 13 mm driver delivers deep bass and clear treble
  • Active noise cancellation cuts background sound for calls
  • IP7 waterproof rating suits workouts and outdoor use

What the earbuds are and who they suit

The No Sew I13 are true wireless in-ear headphones that use Bluetooth 5.4 for fast pairing and stable playback. They weigh 3.8 grams each and come with a compact charging case that extends total listening time to 40 hours. Active noise cancellation and ENC microphones target commuters and office workers who want clearer calls without bulky over-ear designs.

Behaviour during long sessions

A single charge runs the earbuds for 8 hours before they must return to the case, which holds four additional full charges. The case recharges in one hour via USB-C, so daily all-day use is practical without hunting for wall sockets. Bluetooth 5.4 maintains connection stability during extended wear, and the IP7 rating protects the buds from heavy sweat or rain during workouts.

Installation and common friction points

Pairing is a one-step process: remove the buds from the case and select i13 on the device Bluetooth list. The earbuds support HSP, HFP, A2DP and AVRCP profiles for broad compatibility. Fit depends on the supplied silicone tips; users with very small or large ear canals may need third-party tips to seal properly and keep noise cancellation effective.

How it compares

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

Price $27.99
Typical for this category: the median of 7,078 items is $25.99.

Specifications

Product
Brand nameOrdtop
Product line13
Model nameI13, i13, RT
Part numberRT
Product typeIn-Ear
Product colorBlack
Performance
Supported distance15 m
Audio & video
Driver size13 mm
Frequency range20000 Hz
Headphone styleIn Ear
Signal-to-noise ratio-50 decibels
Audio sensitivity-50 decibels
Wearing styleSingle Ear
Noise cancellationActive
Mic frequency response20000 Hz
Mic signal-to-noise ratio-50 decibels
Mic sensitivity-50 decibels
Connectivity
Wireless technologyBluetooth
Ports & slots
ConnectionNo Jack
Power
Power supplyBattery, a, lithium polymer, true
Battery pack8 h
Run time8 h
Charging time1 h
Built-in batteryBattery
Size & build
Product weight3.8 g

Questions about this item

How much power does the case draw when the 40-hour battery is fully charged?

The charging case stops drawing power once both the earbuds and the case reach full charge, so idle consumption is negligible.

Does the I13 need a phone with Bluetooth 5.4 to pair?

No, the earbuds work with any device that supports Bluetooth 5.3 or earlier; they simply fall back to the highest common version.

Will the 13 mm drivers sound thin when I switch from over-ear headphones?

The larger 13 mm dynamic drivers deliver deeper bass and fuller mids than typical 6 mm buds, so the tonal balance stays rich.

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