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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.

  • TypeIn-Ear
  • ColorBlack
  • Driver Unit6 millimeters
  • Frequency Response20 hertz
  • THDIn Ear
  • Input Impedance32 ohms
  • 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.

Highlights

  • 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

Specifications

BrandKVANCEGR
Series1
ModelBTW73, KVANCE77
Part NumberBTW73
TypeIn-Ear
ColorBlack
Driver Unit6 millimeters
Frequency Response20 hertz
THDIn Ear
Input Impedance32 ohms
Signal to Noise Ratio(SNR)98 decibels
Power Supplybattery, true
Sensitivity98 decibels
ConnectorNo Jack (Wireless)
Ear CouplingSingle Ear
Cord LengthWireless Earbuds
Weight0.25 ounces
Noise CancellingActive
Wireless TypeBluetooth
Battery140 hours
Operating Time140 hours
Charge Time2.5 hours, 0.5 hours
Distance33 feet
Contains Embedded Batterybattery
Microphone Impedance~3K ohm
Microphone Frequency Response20 hertz
Microphone Signal to Noise Ratio(SNR)98 decibels
Microphone Sensitivity98 decibels
Featuresactive_noise_cancellation, 5.4, 140 hours, Touch Control, touch, Wireless, In Ear, dynamic_driver, 32 ohm, 33 feet, 2 x Pairs Of Additional Eartips(Small & Large)
Package Contents2 x Pairs Of Additional Eartips(Small & Large), Charging Case, Wireless Earbuds, USB-C cable (12inches)

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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