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Tiny deep-black in-ear buds with matching charging case

No Sew

No Sew SK19S Invisible Sleep Earbuds Deep Black

SKU CH-6JEJ-X3GXT

Tiny in-ear buds with Bluetooth 5.3, sound isolation and a 300 mAh case giving up to 30 hours total playtime

  • TypeIn-Ear
  • ColorDeep Black
  • THDIn Ear
  • Input Impedance38 ohms
  • Ear CouplingSingle Ear
  • Cord Length1x USB-C Charging Cable
  • Ultra-light 0.08 oz earbuds disappear in small ear canals for side-sleep comfort
  • Bluetooth 5.3 chip gives stable, low-latency audio for music and calls
  • Sound-isolating single-ear design blocks background noise without active cancellation
  • 6-hour bud life plus 300 mAh case delivers 30 hours total playtime
  • 20-minute USB-C fast charge provides 4 hours of listening for daily use

Side-sleeper earbuds

The Mudtun SK19S are true-wireless in-ear buds built for people who sleep on their side or need invisible wear during work. Each bud weighs 0.08 ounces and uses a low-profile shape that sits flush inside small ear canals without protruding. Bluetooth 5.3 handles the wireless link and a single USB-C cable charges the case.

Upgrade from bulky buds

They replace over-ear headphones or standard stems that press against the pillow and cause pain after an hour. The jump is worth it when you need eight hours of overnight audio or all-day calls without any part touching the mattress or helmet strap. Battery life reaches 6 hours per charge and the 300 mAh case extends total playtime to 30 hours.

Check before ordering

Verify your phone, tablet or laptop supports Bluetooth 5.3 for the stated connection stability. The package supplies only one USB-C cable so confirm you have a spare charger or port for the case. Ear coupling is single-ear design; users who want stereo separation from two separate buds should note this limitation.

Highlights

  • Ultra-light 0.08 oz earbuds disappear in small ear canals for side-sleep comfort
  • Bluetooth 5.3 chip gives stable, low-latency audio for music and calls
  • Sound-isolating single-ear design blocks background noise without active cancellation
  • 6-hour bud life plus 300 mAh case delivers 30 hours total playtime
  • 20-minute USB-C fast charge provides 4 hours of listening for daily use

Specifications

BrandMudtun
ModelSK19S
Part NumberSK19S
TypeIn-Ear
ColorDeep Black
THDIn Ear
Input Impedance38 ohms
Ear CouplingSingle Ear
Cord Length1x USB-C Charging Cable
Noise Cancellingsound_isolation
Wireless TypeBluetooth
Battery6 hours
Operating Time6 hours
Microphone Impedance~3K ohm
Compatibilitypc_usb
Featuressound_isolation, 6 hours, touch, Wireless, In Ear, 38 ohm, 2x invisible Earbuds
Windows Vistapc_usb
Package Contents2x invisible Earbuds, Wireless Charging Case, 1x USB-C Charging Cable, User Manual

Questions about this item

How small are the SK19S earbuds and will they fit a small ear canal?

Each earbud weighs 0.08 ounces and is designed for small ear canals with an ergonomic, low-profile shape that sits almost invisibly in the ear.

What is the correct way to pair the SK19S earbuds via Bluetooth 5.3?

Open the charging case to enter pairing mode automatically, then select the earbuds on your device; the step users miss is keeping the case open until the connection confirms.

How long does the 300mAh charging case last before it needs recharging?

The case provides up to 30 hours of total playtime, recharging the earbuds multiple times from its built-in battery before requiring a USB-C top-up.

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