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Pair of white true wireless earbuds in matching charging case

UMIDIGI

UMIDIGI S11 True Wireless Earbuds White

SKU CH-R349-CWY7V

True wireless earbuds with Bluetooth 5.0, 10-metre range, 4-hour playtime and a 300mAh charging case

  • ColorWhite
  • Bluetooth 5.0 keeps audio stable up to 10 metres
  • 50 mAh buds plus 300 mAh case deliver about 4 hours play
  • 60 minute charge refills the case for another cycle
  • 20–20 000 Hz range with 16 ohm drivers covers full sound spectrum
  • Ergonomic fit and compact size stay comfortable on the move

UMIDIGI S11 True Wireless Earbuds

These white true wireless earbuds use Bluetooth 5.0 for a stable connection up to 10 metres. Each earbud holds a 50 mAh battery while the charging case provides 300 mAh. They suit listeners who want a compact, cable-free option for daily commuting or casual audio.

Thermals noise and power draw

The earbuds deliver about four hours of playback on a single charge. Replenishing the case and buds takes roughly 60 minutes via a DC 5 V input. With no active cooling or moving parts, operation is completely silent and power draw remains negligible during normal use.

Deciding specification four hour battery life

A single charge yields about four hours of listening time, which determines whether the S11 fits your routine. Buyers who need all-day playback without recharging the case should look elsewhere. The 16 ohm impedance and 20 to 20000 Hz frequency range support standard music and call audio.

Highlights

  • Bluetooth 5.0 keeps audio stable up to 10 metres
  • 50 mAh buds plus 300 mAh case deliver about 4 hours play
  • 60 minute charge refills the case for another cycle
  • 20–20 000 Hz range with 16 ohm drivers covers full sound spectrum
  • Ergonomic fit and compact size stay comfortable on the move

Specifications

ColorWhite

Questions about this item

How do I pair the earbuds and what step often causes the first connection to fail?

Take both buds out of the 300mAh case to enter pairing mode automatically, then select the S11 on your phone's Bluetooth 5.0 list; the common mistake is trying to pair while one bud is still seated in the compartment.

What part will need replacement first and how can I tell?

Each bud's 50mAh cell degrades after repeated cycles; when listening time drops well below the rated 4 hours per charge, the internal battery is at end of life.

At what volume level does the 16-ohm driver start to distort during long sessions?

The 20-20000Hz drivers stay clean at moderate levels, but pushing near maximum output for extended periods introduces audible clipping before the 60-minute recharge is needed.

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