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Deal.ai › Sharp › Digital Clocks
SHARP
Sharp Big Bang Super Loud Alarm Clock

Sharp Big Bang Super Loud Alarm Clock

4.6(237 ratings)

Best price now

$24.99at AmazonChecked 1 h ago

23% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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Price facts

  • Lowest price today: $24.99 at Amazon (checked Nov 14, 2026).
  • Checked at 4 stores.

Our take on the Sharp Big Bang Super Loud Alarm Clock

The Sharp Big Bang is a plug-in digital alarm clock built for people who sleep through normal alarms. It offers six wake sounds, including a rooster, bugle, jackhammer and siren, with adjustable volume and tone reaching up to 115 dB. Two independent alarms and a snooze you can set from 1 to 59 minutes suit couples or roommates on different schedules. Against ordinary bedside clocks it trades subtlety for raw loudness, and owners of heavy sleepers and hard-of-hearing users tend to rate it well.

Best forHeavy sleepers who ignore standard alarmsHard-of-hearing users who need a loud bedside alertCouples or roommates with different wake timesParents waking reluctant kids and teens
Pros
  • Very loud output, up to 115 dB
  • Six distinct wake sounds with adjustable volume and tone
  • Two separate alarms for different schedules
  • Snooze adjustable from 1 to 59 minutes
  • Three brightness levels, including off
  • Battery backup keeps settings through outages
Cons
  • Runs on wall power; batteries are backup only
  • Some wake sounds are deliberately grating
  • Large, bold case may not suit every nightstand
  • No radio or Bluetooth
  • Loudness can disturb others in the home

Sharp Big Bang Super Loud Alarm Clock prices at every store

  • WalmartNew

    In stockSold by The Clock Shop

    $24.99+ $6.99 shippingChecked 11 min ago
    Visit Walmart
  • PoshmarkNew

    In stock

    $45.00+ $6.49 shippingChecked 11 min ago
    Visit Poshmark
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $24.99Checked 1 h ago
    Visit Amazon
  • eBayNew

    Availability unknownSold by localstorefinds (99.8% positive, 2,600 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $32.64Free shippingChecked 1 h ago
    Visit eBay
  • eBayOpen box

    Availability unknownSold by plstreasures (99.6% positive, 441 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $36.99+ $4.99 shippingChecked 1 h ago
    Visit eBay

Also available at

  • eBayCheck price at eBay
  • WalmartCheck price at Walmart

Store links may earn us a commission.

Sharp Big Bang Super Loud Alarm Clock price history

Lowest price we've seen: $24.99 on Nov 14 at Walmart. Tracked across 4 stores since Nov 14.

What reviewers say

  • 4.6 / 5237 ratings

Owners rate it highly, mostly because it actually wakes people who sleep through phone alarms. The loud volume and choice of sounds are the main draws; a few find the sounds harsh and the size bulky.

What people mention
  • LoudnessPraisedOwners say it wakes people who sleep through phone and standard alarms.
  • Alarm soundsMixedThe six sounds are useful for variety, but some find the nagging mom and siren tones grating.
  • Dual alarmsPraisedTwo separate alarms are valued by couples and roommates with different schedules.
  • SnoozePraisedThe adjustable 1-to-59-minute snooze is called handy compared with fixed snoozes.
  • SizeCriticisedSome owners find the case large and bulky on a bedside table.

About the Sharp Big Bang Super Loud Alarm Clock

The Sharp Big Bang is a digital alarm clock with a silver and black case and a white LED display. Its alarm reaches up to 115 dB. It has six wake-up sounds: Rooster, Bugle, Nagging Mom, Jackhammer, Siren and Loud Beep. You can adjust both the volume and the tone of the sounds.

Two separate alarms can be set, which suits people who keep different schedules. A snooze button sits on top of the clock. Snooze time can be set from 1 to 59 minutes, and the default is 9 minutes. The display has three brightness settings: Off, Low and High.

The clock plugs into a standard 110V/120V household wall outlet. Two AAA batteries provide backup that stores the time and alarm settings during a power interruption. The display does not light while it runs on battery backup. It lights again when power returns.

Brand
SHARP
Type
Deep sleep digital alarm clock
Alarm volume
Up to 115 dB
Alarm sounds
6: Rooster, Bugle, Nagging Mom, Jackhammer, Siren, Loud Beep
Alarms
2 separate alarms
Snooze
Adjustable 1 to 59 minutes, default 9 minutes
Display
White LED digital display
Brightness
3 levels: Off, Low, High
Case
Silver and black
Power
Plug-in, 110V/120V wall outlet
Backup battery
2 x AAA, not included
Age group
Adult, child, senior, teen, tween

Specifications

color
MulticolorSource
Alarm clock type
Deep Sleep Alarm ClocksSource
Battery size
AAASource
Display
DigitalSource

Questions and answers

Does it run on batteries alone?
No. It plugs into a wall outlet and uses AAA batteries only for backup, so settings and time survive a power cut.
How loud is it really?
Sharp rates the alarm up to 115 dB, and volume and tone are adjustable, so you can dial it down from maximum.
Can I set two different wake times?
Yes. It has two independent alarms, which helps when two people in one room get up at different times.
Can I change how long snooze lasts?
Yes. Snooze can be set from 1 to 59 minutes; if you leave it, the default is 9 minutes.
Will the display light up my room at night?
The white LED display has three brightness levels, including off, so you can darken it for sleep.
Is it good for someone hard of hearing?
Its high volume and piercing tones are aimed at heavy sleepers and hearing-impaired users, though a vibrating or flashing alert is not part of this model.
Where is the Sharp Big Bang Super Loud Alarm Clock cheapest?
At Amazon, for $24.99, 23% under what the other stores charge, as of our latest check.
What do buyers say about the Sharp Big Bang Super Loud Alarm Clock?
Rated 4.6 out of 5 from 237 ratings.
Where can I buy the Sharp Big Bang Super Loud Alarm Clock?
4 stores we checked sell it, including Walmart, Poshmark, Amazon, eBay.

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Buying guides that pick the Sharp Big Bang Super Loud Alarm Clock

  • Best loud alarm clocks

Stores we've priced the Sharp Big Bang Super Loud Alarm Clock at

  • Walmart deals and prices

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Power type
BatterySource
Features
Battery Backup, Snooze FunctionSource
Brand
SHARPSource
Model
Sharp Big Bang Super Loud Alarm ClockSource
Age group
Adult, Child, Senior, Teen, TweenSource
Product Type
Alarm clock
Subtype
Digital alarm clock
Movement Type
Digital
Mounting Type
Wall Mount
Case Shape
Rectangular
Height
5.91 in
Width
3.55 in
Depth
3.58 inches
Weight
1.3 lbs
Display Type
Digital
Display Backlight
Yes
Display Projection
No
Style
Classic Style
Material
Plastic
Design Highlights
Oversized
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