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Tiny black in-ear buds with matching tumbler charging case

SuperTooth SK18 Bluetooth 5.3 earbuds Black

SKU CH-BCJC-ZTS6F

Ultra-small Bluetooth 5.3 earbuds with a tumbler-style charging case extend listening to 24 hours while staying nearly invisible in the ear

  • Talk durationUp to 15 hour(s)
  • Music playtimeUp to 15 hour(s)
  • Standby duration4 h
  • Charging time2 h
  • Operating distance30 ft (9.14 m)
  • Bluetooth standard5.0
  • Ultra-light at 0.08 oz for invisible all-day wear
  • Bluetooth 5.3 chip keeps the link steady with low latency
  • Tumbler case stands upright and shows remaining power at a glance
  • 24-hour total playtime from a 1-hour charge cycle
  • Touch controls handle calls, volume and voice assistant without reaching for your phone

Ultra-Small In-Ear Fit

These SuperTooth SK18 earbuds weigh 0.08 ounces each and measure roughly the size of a peanut. The tiny housings sit completely inside the ear canal for a nearly invisible profile. They suit commuters, office workers and side sleepers who want audio without a visible stem or bulk.

Bluetooth 5.3 and Case Compatibility

Pairing requires a source device that supports Bluetooth 5.3 for the advertised low-latency link. The tumbler-style charging case stands upright on a desk but measures 14.33 by 12.83 by 9.06 inches, so verify drawer or bag space before ordering. The case shows remaining capacity through an LED display.

Plastic Build and Touch Controls

The glossy plastic shells resist light splashes thanks to a waterproof coating, while the in-ear tips provide passive sound isolation. Tap gestures on each bud handle calls, volume, voice assistants and playback without reaching for a phone. A full recharge takes one hour and yields four hours of listening, with the case extending total use to 24 hours.

How it compares

Measured against everything we stock in Bluetooth Earbuds & Headsets, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 63% of the 870 comparable items (median $30.99).

Specifications

Product
Brand nameSuperTooth
Product lineSK18
Model nameSK18
Part numberMiaosu-SJJ-SK18-Black
Product colorBlack
Connectivity
Operating distance30 ft (9.14 m)
Bluetooth standard5.0
Power
Talk durationUp to 15 hour(s)
Music playtimeUp to 15 hour(s)
Standby duration4 h
Charging time2 h
Battery pack4 h
Size & build
Product dimensions14.33 in W × 12.83 in H × 9.06 in D
Product weight1 oz
Compatibility
Compatible withSmartphones, Laptops, Desktops, Tablets

Questions about this item

What comes inside the box and what do I need to buy separately?

The box contains the SuperTooth SK18 earbuds, a charging case with LED power display, and a charging cable. A USB power adapter for the case is not included.

Which Bluetooth version should I expect on the SK18?

The SK18 uses Bluetooth 5.3 for a stable, low-latency connection with smartphones, laptops, and tablets.

How long will the earbuds last on a single charge during music playback?

Each charge gives up to 4 hours of music time; the case extends total listening to 20 hours.

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