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Rectangular black alarm clock with digital display and fabric speaker grille

SAMSUNG A21-B Bluetooth 5.0 Alarm Clock Black

SKU CH-89W7-SC9WZ

Bluetooth 5.0 alarm clock with dual alarms, six brightness levels and two 5 W speakers for music playback

  • Connection optionsAUX, USB
  • Spec summary6.69 L x 3.81 W x 3.39 H inches, A21-B, Fansbe Tech, 0.83 kg
  • Product depth6.69 L x 3.81 W x 3.39 H inches
  • Product colorBlack
  • Key featuresAUX, USB, Digital, Corded Electric, true
  • Overall height3.39 in (8.61 cm)
  • Bluetooth 5.0 syncs time instantly from your phone
  • Dual independent alarms with a large 9-minute snooze button
  • Two 5 W speakers deliver clear sound for alarms and music
  • Six dimmable brightness levels suit dark or bright rooms
  • AUX and USB inputs add wired playback flexibility

Samsung A21-B alarm clock

The Samsung A21-B is a corded-electric digital alarm clock with Bluetooth 5.0, AUX and USB connectivity. It includes dual independent alarms, a nine-minute snooze button, six brightness levels and six selectable ringtones. Two built-in 5 W speakers provide audio for alarms and music streaming.

Suited for bedside use

This unit suits anyone who wants a single device that handles wake-up alarms, Bluetooth audio playback and a dimmable display. Buyers needing battery-backup operation, wireless charging or a larger speaker system should look elsewhere.

Bluetooth 5.0 connectivity

The clock pairs with phones, tablets or computers over Bluetooth 5.0 for wireless audio streaming. AUX and USB ports give additional wired options for sources that do not support Bluetooth.

How it compares

Measured against everything we stock in Bluetooth Trackers & Smart Devices, at today’s prices. Recalculated every night.

Price $68.99
Pricier than about 80% of the 29 comparable items (median $40.99).

Specifications

Product
Brand nameSAMSUNG
Model nameA21-B
Part numberA21-B
Product colorBlack
Connectivity
Connection optionsAUX, USB
Size & build
Overall height3.39 in (8.61 cm)
Overall width6.69 in (17 cm)
Product depth6.69 L x 3.81 W x 3.39 H inches
Product weight0.83 kg

Questions about this item

How do I pair the clock with my phone over Bluetooth 5.0, and what step do people often miss?

Enable Bluetooth on the phone, select the A21-B from the device list, then confirm the pairing code; the step many skip is allowing the clock to sync its time automatically from the phone after pairing.

Which parts will need replacement first with daily use?

The two 5 W speakers and the USB port are the components most likely to wear out after extended daily playback and charging cycles.

What limit appears first during continuous music playback at high volume?

The 5 W speaker output reaches its maximum clean level before any other constraint, so sustained loud playback will hit that acoustic ceiling first.

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