DreamSky DS306 Digital Alarm Clock, 3-Inch Display

DreamSky DS306 is a plug-in digital alarm clock with a 3-inch display, adjustable brightness and an adjustable-volume alarm. Its dimmer and large-number display suit bedside use, while battery backup stores settings only and does not keep the screen or alarm running during an outage.

At a glance

The display brightness is adjustable from 0 to 100 percent using a wheel, according to the listing.
One alarm has adjustable sound volume and a 9-minute snooze.
A USB port is provided for charging another device.
The listing describes the clock as easy to set and operate.

Price

$22.61Save 22%

Reference price: ~~$28.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Large, bold digits and a wide brightness adjustment range can help tailor bedside readability and nighttime light.
Adjustable alarm volume and a snooze function offer control over wake-up settings.
The USB charging port provides a charging connection at the bedside.

Cons

The clock needs its adapter for normal operation. Backup batteries do not keep the display lit or sound the alarm during a power outage.

Technical specifications

10 specifications

Identity
Brand	DreamSky
Model	DS306

Display
Screen size	3 inches
Display technology listed	Digital

Connectivity and controls
Connection listed	USB

Power and battery
Power configuration	Corded Electric

Dimensions and installation
Mounting type	Tabletop
Form factor	Rectangular
Dimensions	8.65"W x 4"H
Weight	0.42 kg

What to know before buying

Listing details to confirm

The listing is inconsistent about backup battery type: one detail says 2 AA batteries, while the feature text specifies 2 AAA batteries. It also describes batteries as storing settings only, with the screen blank and alarm silent during an outage. Confirm battery requirements and the included adapter with the selected listing.

Who is it for?

A good fit for

Bedside users who want large digital digits with adjustable display brightness.
People who want to set alarm volume and use a snooze function.
Those who can keep the clock connected to an outlet and want a bedside USB charging port.

Less suited to

Anyone needing the clock to display the time or sound an alarm during a power outage.
Anyone who needs a battery-operated clock rather than an outlet-powered one.

DreamSky DS306 Digital Alarm Clock, 3-Inch Display · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.7 / 5 · 12,945 ratings

5 stars84%84%
4 stars10%10%
3 stars2%2%
2 stars1%1%
1 star3%3%

Customer feedback highlights easy-to-read large digits, visibility from across a room, brightness adjustment and straightforward operation. Those reported strengths fit the listed 3-inch display and dimmer, making readability and bedside setup relevant considerations. Feedback also describes the clock as worth its price, though aggregate ratings alone do not establish how it will suit an individual buyer.

Positive themes

Customers praise the large, readable numbers and visibility from across a room.
Customers report appreciating adjustable brightness and simple operation.

Frequently asked questions

Does the DS306 run on batteries?

The listing says it requires an adapter for normal operation. Backup batteries store the clock settings, but the screen goes blank and the alarm does not sound when main power is lost.

What battery type does it use for backup?

The listing conflicts: a details field says 2 AA batteries, while feature text says 2 AAA batteries. Check the selected listing before buying.

Can the display brightness be adjusted?

The listing claims a 0–100 percent brightness adjustment using a dimmer wheel.

Does it have a snooze function?

Yes. The listing specifies a 9-minute snooze.