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Black in-ear wireless earbuds with compact charging case

No Sew

No Sew BTW73 In-Ear Headphones Black Active Noise Cancelling Bluetooth 5.4 140h Battery

SKU CH-H0GY-T12Y9

In-ear wireless earbuds with -42 dB active noise cancellation, transparency mode, Bluetooth 5.4, 140-hour total battery life, 10-minute quick charge for 2 hours, ENC call clarity.

  • Driver size6 mm
  • Frequency range20 Hz
  • Headphone styleIn Ear
  • Impedance32 ohms
  • Signal-to-noise ratio98 decibels
  • Power supplyBattery, true
  • 42 dB Active Noise Cancellation blocks ambient sound for focused listening
  • 140-hour total battery life with charging case powers weeks of use
  • 8 g per earbud ergonomic design stays comfortable all day
  • Bluetooth 5.4 multi-device pairing switches between two sources instantly
  • 06 s low-latency Gaming Mode keeps audio in sync with video

Immersive ANC and Transparency Mode

These earbuds deliver up to -42dB active noise cancellation so you can focus on commutes or in the office. Transparency mode lets ambient sound in when you need awareness. They suit listeners who want isolation without bulk.

140-hour battery life and quick charge

The case provides up to 140 hours of total playtime and each bud runs for 7 hours on a single charge. A 10-minute top-up adds 2 hours of listening. Bluetooth 5.4 keeps the link stable and reconnects automatically when you open the case.

Multi-device pairing and gaming mode

Connect two devices at once and switch between phone and laptop without re-pairing. Gaming mode cuts latency to 0.06s for tighter audio sync in games and video. Note that the single-ear coupling means stereo separation is limited compared with dual-driver designs.

How it compares

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

Price $22.99
Cheaper than about 55% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameKVANCEGR
Product line1
Model nameBTW73, KVANCE77
Part numberBTW73
Product typeIn-Ear
Product colorBlack
Performance
Supported distance33 ft (10.1 m)
Audio & video
Driver size6 mm
Frequency range20 Hz
Headphone styleIn Ear
Impedance32 ohms
Signal-to-noise ratio98 decibels
Audio sensitivity98 decibels
Wearing styleSingle Ear
Noise cancellationActive
Mic impedance~3K ohm
Mic frequency response20 Hz
Mic signal-to-noise ratio98 decibels
Mic sensitivity98 decibels
Connectivity
Wireless technologyBluetooth
Ports & slots
ConnectionNo Jack (Wireless)
Power
Power supplyBattery, true
Battery pack140 h
Run time140 h
Charging time2.5 h, 0.5 h
Built-in batteryBattery
Size & build
Cord lengthWireless Earbuds
Product weight0.25 oz
In the box
In the box2 x Pairs Of Additional Eartips(Small & Large), Charging Case, Wireless Earbuds, USB-C cable (12 in)

Questions about this item

How do I pair the BTW73 earbuds with two devices at once?

Open the charging case to enter pairing mode, connect the first device via Bluetooth 5.4, then pair the second device; the earbuds will switch automatically between them.

What ongoing care do the earbuds and case require?

Wipe the 6 mm drivers and ear tips regularly, keep the charging contacts clean, and recharge the case before its 140-hour reserve is depleted.

How long can I use ANC continuously before the battery runs out?

Active Noise Cancelling gives up to 7 hours of playtime on a single charge; the case extends total listening to 140 hours.

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