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🔔 Wake up loud, proud, and on time — no snooze regrets!
The Sharp Big Bang Alarm Clock delivers an ear-piercing 115dB alarm with 6 customizable sounds and adjustable volume/tone, perfect for heavy sleepers and shift workers. Featuring dual alarms with personalized snooze, a 3-level dimmable digital display, and battery backup to preserve settings during power outages, this electric-powered clock ensures you never oversleep again.












| ASIN | B0BDPQNVMR |
| Additional Features | Adjustable Volume |
| Alarm Clock | Yes |
| Best Sellers Rank | #16,660 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #76 in Alarm Clocks |
| Brand | Sharp |
| Brand Name | Sharp |
| Clock Form | Time Clock |
| Color | Silver |
| Customer Reviews | 4.2 out of 5 stars 2,198 Reviews |
| Dial Color | White |
| Display Type | Digital |
| Frame Material | Acrylonitrile Butadiene Styrene |
| Indoor Outdoor Usage | Indoor |
| Item Dimensions W x H | 3.55"W x 5.91"H |
| Item Weight | 12.48 ounces |
| Manufacturer | Sharp |
| Manufacturer Part Number | SPC657CDAMZ |
| Material Type | Silver |
| Mounting Type | Wall Mount |
| Number of Batteries | 2 AAA batteries required. |
| Number of Items | 1 |
| Number of Packs | 1 |
| Operation Mode | Electrical |
| Power Source | Battery Powered |
| Product Dimensions | 3.55"W x 5.91"H |
| Room Type | Bedroom |
| Shape | Rectangular |
| Size | Large |
| Special Feature | Adjustable Volume |
| Style | Contemporary |
| Style Name | Contemporary |
| Theme | Alarm Clock |
| UPC | 049353008608 |
| Unit Count | 1 Count |
| Watch Movement | Quartz |
D**K
Very Loud
Seriously, if you're a deep sleeper, this alarm clock is a lifesaver! It's incredibly loud, like a small explosion going off, but in a good way. The different sound options are pretty cool too, and you can even adjust the tone. Plus, the custom snooze is a game-changer for those mornings when you need an extra few minutes. Definitely worth it if you're tired of sleeping through your alarm.
S**.
Its EXACTLY what is described... I sleep like a rock - this is the only thing that will wake me up!!
This Sharp Big Band Super Loud Alarm Clock - is the real deal. It isn't a normal loud, it is EXTREMELY LOUD! Which is exactly what I wanted and needed! It has different wake up sounds and has I think 1-15 different loud settings, 15 being the loudest. If your anything like myself (I would call myself a very, very, HARD sleeper, anything above "10" will work for me) but I still have it all the way up just so I know ill wake up regardless! It's a blessing and a curse to be able to sleep like I do, but the curse is that normal alarm clocks just don't do it! I even looked into those alarm clocks with a shaker for your pillow.. I can tell you with how loud this is, you don't need anything else but this alarm clock! To give you a little example of how deep of a sleeper I am, when my fiancé and myself were in the hospital after our third child, the fire alarm for the brand new hospital we were in, went off and everyone on our floor ran out of their room thinking if was for real, and this was around 3AM in the winter, there was snow on the ground outside - I was still sleeping on the bed completely unfazed from this gigantic alarm going off through the hospital. Yes I was a bit sleep deprived as well but still, even if I wasn't, I would not have woken up.. So after saying that type of story, and for me to say this works for me should tell you how loud this alarm clock is!! I will say if your sharing a house with roommates, small kids, or a family - you may want to let them hear it so they at least don't awaken frightfully when it goes off lol regardless where this alarm is located in your house, it WILL wake up people throughout the house if you have to have it on the loudest setting. My fiancé can literally wake up to her phone vibrating in the morning. She is a very light sleeper so if she was around in the morning to hear this alarm clock go off it would probably blow her eardrums out (lol being a little dramatic but it is extremely loud when your right next to it) but really this is so loud it will wake some up everyone in the house. In all seriousness this alarm clock does its job for HEAVY SLEEPERS and is a fantastic!! I have loved it since the first morning Ive used it. It has not let me down yet and I HIGHLY recommend this alarm clock to the people that sleep similarly to myself. 5 out of 5 stars for this product! Love it!!
C**E
Great buy, very loud, spouse may hate you but you won’t miss work.
Things been a life saver, only alarm clock that I have not had to worry about being able to wake me up. Have been using it for about a year now and still works great.
B**R
THIS IS A GREAT CLOCK - UNTIL IT FALLS ON THE FLOOR. AVOID THIS CLOCK!
I really like this clock. It has controls that are intuitive, the display is very good, and most of all, the alarm is very loud! You can also select from several humorous alarm themes. In fact, I've bought three of these. But not for the reason you think. These clocks have a "wall wart" power supply. If your clock falls off your nightstand and hits the part where the cord plugs into the clock, it will destroy your clock. Now, if you're one of those people who NEVER have knocked an alarm clock off your night stand, there's nothing to worry about. BUT if you're like the other 98% of us, this WILL happen to you. The circuit board where the power plug from the wall wart plugs into the back of the clock is apparently very flimsy. Drop the clock onto the floor and the power plug will get pushed in and the circuit board will break, leaving you with a $27 paper weight. It happened to me TWICE. It WILL happen to you. If you don't mind replacing the clock every 60 days, this should not be a real problem.
C**B
Very loud (4/2025)! Light issue (10 months later)
Update 10 months after purchase. Had to order another one because the numbers are no longer lighting up properly. See picture. Time is 11:58 but hard to tell, especially when half asleep. And the picture makes it seem more clear than it is. We are trying to teach our 15 year old grandson to get up on his own. He sleeps so hard that when he wakes up it is like he is coming out of general anesthesia, I am not kidding. This is super loud and does a great job waking him up. The reason I can’t give 5 stars is because it turns off after a few minutes- that defeats the purpose. He knows that all he has to do is lay there for awhile and can fall back to sleep. Fortunately he uses the second alarm, but still - it should not turn off until he turns it off.
N**E
Loud!!!!
Excellent. I love the fact that she can choose from several different sounds. The volume goes up to 15.
G**C
Great clock
I like this clock because it meets my needs very well. I am a sound sleeper, and this clock is loud enough to wake me up. I like the dual alarm and the sound features.
D**E
If you wanna wake up, this is worth your money
It wakes me up. Sounds great. Doesn’t seem to have any problems with me. Waking up is the biggest thing I have to get up at 3:30 in the morning. Sound quality is great. Appearance is great. Lighting is great. Durability is great color. I pick the gray one, but if you need to wake up, this will wake you up and I wear hearing aids, but not in bed.
A**R
It's as loud as you need it to be.
Two alarms, very nice brightness adjustment for those of us who like our bedrooms dark and are irritated by the various lights that electronics provide. More important, the alarm can be set to a variety of volumes from quite soft to ear-piercingly loud. There are a variety of sounds, from the stock beeper to a bugle and others in between. Its an alarm clock and it does what it is supposed to do. The manufacturer thought it out though, and included the "nice to haves" that make it a really good buy. In my case, I even got a retroactive refund because an export fee was reduced after I paid for the thing. The refund was small and Amazon probably spent more processing it than I ever collected - so a nice aside there on a good business practice...
H**Z
Reloj
Excelente
E**O
1 mês durou até então
Pra quem tem muita dificuldade mesmo em acordar, vale a pena, é bem alto, e até agora faz 1 mês que comprei e tá durando bem. Diria que vale o preço.
B**Z
Funcional
Muy bueno mi esposo tiene problemas de audición este si lo escucha
M**T
Exactly what I was looking for
I was looking for a loud alarm clock, as I am a heavy sleeper. The alarm clock on my phone wasn't cutting it anymore. I looked at many different alarm clocks, and nothing quite stuck out like this one. I thought I would give it a try and for the price point figured it would be a decent product. Instructions were clear and easy to read and set up. The multiple alarms is nice for those days I don't want to wake up at the same time. The variety of alarm sounds are loud, my personal favorite is the rooster. It wakes me up and gets me out of bed. Thoroughly impressed with this alarm clock.
Trustpilot
1 month ago
2 months ago