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Black in-ear wireless earbuds with LED display charging case

No Sew

No Sew TW984 NC01T in-ear headphones Bluetooth 5.4 40H ANC black

SKU CH-DJJF-MZVKF

In-ear wireless earbuds with Bluetooth 5.4, active noise cancellation and up to 40 hours total playtime

  • Driver size10 mm
  • Frequency range5 Hz-20 kHz
  • Headphone styleIn Ear
  • Impedance32 ohms
  • Signal-to-noise ratio99.5 decibels
  • Power supplyBattery, c, aaa, true
  • Active Noise Cancellation blocks low-frequency sound
  • 40-hour total playtime with charging case
  • Bluetooth 5.4 gives stable wireless connection
  • LED display shows remaining battery level
  • 10 mm drivers deliver 5 Hz-20 KHz frequency response

In-Ear Headphones with Bluetooth 5.4

These in-ear headphones use Bluetooth 5.4 for wireless audio on smartphones, tablets, laptops and smart TVs. Active noise cancellation reduces low and mid-frequency noise while the 10 mm drivers cover a 5 Hz to 20 kHz response. The 32 ohm impedance and 99.5 dB sensitivity suit everyday listening across iOS and Android devices.

LED Case Display and App EQ

The charging case includes an LED readout that shows remaining power for both buds and case. The HAVIT LIFE app adds six preset EQ modes such as rock, classical and jazz plus a manual adjuster. Four ear-tip sizes from XS to L are supplied to improve passive seal and therefore the effectiveness of the active noise cancellation.

40 Hour Total Playtime

A single charge gives up to 6.5 hours of playback and the case extends this to 40 hours total. Recharging the case takes about 2 hours. The 0.109 kg weight keeps the buds light for long sessions, while multipoint compatibility lets you switch between two paired devices without re-pairing.

How it compares

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

Price $19.99
Cheaper than about 60% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameHavit
Model nameTW984, NC01T
Part numberNC01T
Product typeIn-Ear
Product colorBlack
Performance
Supported distance10 m
Audio & video
Driver size10 mm
Frequency range5 Hz-20 kHz
Headphone styleIn Ear
Impedance32 ohms
Signal-to-noise ratio99.5 decibels
Audio sensitivity99.5 decibels
Wearing styleSingle Ear
Noise cancellationActive
Mic impedance~3K ohm
Mic frequency response20 Hz-20 kHz
Mic signal-to-noise ratio99.5 decibels
Mic sensitivity99.5 decibels
Connectivity
Wireless technologyBluetooth
Ports & slots
ConnectionNo Jack
Power
Power supplyBattery, c, aaa, true
Battery pack24 h
Run time24 h
Charging time2 h
Built-in batteryBattery
Size & build
Product weight0.109 kg

Questions about this item

When will the earbud batteries need replacing if I use them daily?

Each earbud delivers up to 6.5 hours per charge and the case extends total playtime to 40 hours; lithium-ion cells typically last several hundred cycles before capacity drops noticeably

What limits continuous listening during a long workday?

The earbuds run for 6.5 hours on a single charge, so a midday top-up in the case is required for all-day sessions

How much heat or noise do the buds produce during hours of ANC use?

In-ear design generates negligible heat and no audible fan noise; active noise cancellation runs silently on the 10 mm drivers while Bluetooth 5.4 maintains a stable link

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