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Black rectangular digital alarm clock with RGB LED digits and USB port

DreamSky DS312 Digital Alarm Clock Black Case RGB Digits USB Port 5.3 in x 3.81 in x 2.6 in

SKU CH-S7SB-J71G3 MPN DS312

Digital alarm clock with 2-inch RGB LED digits, adjustable brightness and 30–90 dB alarm volume, plus a USB charging port

  • Color familyBlack Case Rgb Digits
  • Product typeDigital
  • Size or dimensions5.3 in × 3.81 in × 2.6 in
  • Color and finishBlack Case Rgb Digits
  • Large 2-inch LED digits readable at a glance
  • Brightness dimmer adjusts display from bright to dark
  • Adjustable alarm volume from 30 to 90 dB
  • USB charging port powers phone without extra outlet
  • 59-inch USB-C cord and AAA battery backup included

Compact Bedside Clock

The DreamSky DS312 is a mains-powered digital alarm clock with a black case and RGB digits measuring 5.3 in x 3.81 in x 2.6 in. It suits bedrooms, kids' nightstands or desks where a clear 2-inch LED display is preferred. The 12 or 24-hour format and simple controls make it practical for all ages.

USB Port and Backup

A built-in USB port lets you charge a phone or small device without using a wall socket. The included 59-inch USB-C adapter powers the clock, while two AAA batteries (not included) retain time and alarm settings during a power cut; the screen stays blank on battery power alone.

Display Range and Limits

The brightness dimmer adjusts from 0 to 100 percent so the display stays readable without disturbing sleep. Alarm volume scales from 30 to 90 dB with a 9-minute snooze and a weekend on/off switch. The clock is not battery-operated for daily use and requires the adapter for normal operation.

How it compares

Measured against everything we stock in Wall & Alarm Clocks, at today’s prices. Recalculated every night.

Price $21.99
Cheaper than about 77% of the 764 comparable items (median $30.99).

Specifications

Product
Brand nameDreamSky
Model nameDS312
Product typeDigital
Color and finishBlack Case Rgb Digits
Color familyBlack Case Rgb Digits
Size & build
Size or dimensions5.3 in × 3.81 in × 2.6 in

Questions about this item

How long will the two AAA backup batteries last before they need changing?

The clock runs from the included USB-C adapter; the two AAA batteries only keep time and alarm settings during a power cut and the display stays blank on battery power alone.

At the loudest 90 dB alarm setting, will the beep disturb a partner in the same room?

The alarm volume adjusts from 30 dB to 90 dB, so you can choose a level that wakes you without being excessively loud for anyone else nearby.

Does the USB charging port stay powered when the clock is running all day?

Yes, the USB port is active whenever the adapter is plugged in, letting you charge a phone or other device continuously while the clock operates.

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