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White rectangular digital clock with large LED numbers on tabletop

Emerson CR2477-black01 Digital Alarm Clock

SKU CH-9XX6-SBEMZ MPN CR2477-black01

Dimmable LED display with dual alarms, five schedule modes, USB charging port and battery backup for power-cut memory retention

  • Connection protocolWireless
  • Product colorWhite
  • DetailsCR2477-black01, RUENVUE, 6.7 L x 1.5 W x 2.95 H inches, Cord
  • Product dimensions14.33 in W × 12.83 in H × 9.06 in D
  • Product weight0.209 kg
  • In the box1, true, false
  • Effortless setup with clearly labeled buttons and large LED digits
  • Adjustable brightness via dimmer dial or automatic Night Mode 6 PM to 6 AM
  • Dual independent alarms with five modes including daily and weekends
  • Nine-minute snooze and raised controls for easy half-asleep operation
  • USB charging port plus battery backup preserves settings during power outages

Digital alarm clock with dual alarms

The Emerson CR2477-black01 is a USB-powered digital clock for bedside or desk use. It displays large LED digits in 12 or 24-hour format and includes a dimmer dial plus an automatic Night Mode that lowers brightness between 6 PM and 6 AM. Two independent alarms each offer five modes including daily, weekdays, weekends and one-time settings. A pre-installed backup battery preserves the time and alarms during power outages.

Suits fixed-location bedside use; not for travel

This clock is designed for a permanent spot on a nightstand or tabletop where mains power is available. The corded USB supply and 0.209 kg weight make it impractical for frequent relocation or battery-only operation. Buyers who need a compact travel alarm or a fully battery-operated unit should look elsewhere.

USB-powered with battery backup for power-cut

The clock runs from a standard USB connection and ships with an embedded backup battery that keeps all settings intact when the mains fails. This single power arrangement decides whether the unit fits a given bedside setup.

How it compares

Measured against everything we stock in Alarm Kits & Motion Sensors, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 88% of the 180 comparable items (median $30.99).

Specifications

Product
Brand nameEmerson
Model nameCR2477-black01
Product colorWhite
Connectivity
Connection protocolWireless
Power
Built-in batteryYes
Size & build
Product dimensions14.33 in W × 12.83 in H × 9.06 in D
Product weight0.209 kg
In the box
In the box1, true, false

Questions about this item

Does the clock include everything needed to run and charge a phone, or must I buy a separate power adapter?

The unit ships with a pre-installed backup battery and a built-in USB charging port; you only need to supply a standard USB power adapter for mains operation.

Which of the two time formats should I pick for everyday use?

Both 12-hour and 24-hour formats are available; choose 12-hour for traditional AM/PM display or 24-hour for unambiguous scheduling.

How loud is the alarm in a typical bedroom?

The alarm is described as loud enough for heavy sleepers, with a snooze function that adds 9 extra minutes before sounding again.

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