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Black true wireless earbuds in matching charging case with LED display

UMIDIGI

UMIDIGI CS121 Wireless Earphones Black

SKU CH-GTXS-ATMKV

Wireless stereo earphones deliver up to six hours of music per charge, with a compact case that adds three full recharges and a digital power display

  • Product colorBlack
  • Stable connection up to 10 metres range
  • Hear every detail from 20 Hz to 20 kHz
  • Up to 6 hours music play per charge
  • Case recharges earbuds about three times
  • IPX5 water and dust resistance protects daily use

UMIDIGI CS121 Wireless Earphones

The UMIDIGI CS121 are true wireless stereo earphones supplied in black. A charging case with an LED digital display stores and powers the buds. Touch controls handle playback and calls without reaching for a phone.

Listeners wanting long battery life

The case holds 320 mAh and each bud 40 mAh at 3.7 V, giving about 6 hours of music or 4 hours of talk time per charge. The case can recharge the buds roughly three times for a total of around 30 hours. Buyers who need active noise cancellation or wireless charging should look elsewhere.

IPX5 water resistance for workouts

An IPX5 rating protects the earphones from sweat and rain during exercise. The ergonomic shape stays comfortable during extended sessions. A Type-C port on the case recharges it in about 2 hours.

How it compares

Measured against everything we stock in Smartwatches & Wearables, at today’s prices. Recalculated every night.

Price $18.99
Cheaper than about 89% of the 2,527 comparable items (median $44.99).

Specifications

Product
Product colorBlack

Questions about this item

Which version should I choose — the single-ear or the stereo pair?

The CS121 is sold as a stereo TWS pair, so both left and right earphones are included in one box.

What does the 6-hour music time mean for daily use?

Each charge gives about 6 hours of playback; the case adds roughly three more full charges for around 30 hours total.

What does the Type-C charging interface cap in practice?

The case charges via Type-C in about 2 hours and then powers the earphones up to three times.

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