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🔔 The loudest wake-up call your morning routine deserves!
The Sharp Big Bang Alarm Clock delivers an ultra-powerful 115dB alarm with six customizable sounds and tones, dual alarms with adjustable snooze, and a 3-level dimmable LED display. Designed for heavy sleepers, it combines robust electric power with battery backup to ensure reliable wake-ups every day.












| ASIN | B0BDPQNVMR |
| Additional Features | Adjustable Volume |
| Alarm Clock | Yes |
| Batteries are Included | No |
| Best Sellers Rank | #16,126 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #55 in Alarm Clocks |
| Brand | Sharp |
| Brand Name | Sharp |
| Clock Form | Time Clock |
| Color | Silver |
| Customer Reviews | 4.3 out of 5 stars 2,086 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 |
| Operation Mode | Electrical |
| Power Source | Corded Electric |
| Product Dimensions | 3.55"W x 5.91"H |
| Room Type | Bedroom |
| Shape | Rectangular |
| Size | Large |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Feature | Adjustable Volume |
| Style | Contemporary |
| Style Name | Contemporary |
| Theme | Alarm Clock |
| UPC | 049353008608 |
| Unit Count | 1.0 Count |
| Watch Movement | Automatic |
K**Y
Game changer
This is the best alarm clock ive ever purchased! When i say, Its able to wake me up i can almost guarantee it gonna wake anyone else up that purchases one also! Its well worth the money! Before purchasing this i have always had the hardest time waking up with an alarm clock! I used to have to set several different alarms with several different sounds in hopes that one of them would wake me up but most times i wouldn't. I would sleep right through all of them because none of them were ever loud enough! THIS ONE HAS BEEN A GAME CHANGER FOR ME! I was surprised with how loud this one is and all the different options it has to choose from! All of which work amazingly well! It's actually able to wake me up the very first time it goes off each morning. What makes this one stand out even more is its not only loud but you can you choose different sounds along with being able to change the tone of each one of the sounds and also change the volume level of each one!
K**R
Compact size, easy to use, and as loud as I need it to be.
Compact size, easy to set, and loud enough for me to hear. I take out my hearing aids at night and sometimes didn't hear the alarm on my phone. With this one, I can set the volume and sound. Easy to hit snooze or turn off alarm. Looks cute in red with large numbers. Easy to turn off the alarm for one night if I want to sleep late. Really like the ease of use for setting my preferences and for handling my morning snooze setting or turning it off.
M**S
actually able to hear it with out hearing aids when sleeping
great alarm I can actually hear without my hearing aids when sleeping ! even have to turn it down a bit , its a great item wish I had found it before went thru several diff ones that didnt work as advertised ! would recomend this clock to anyone that has hearing problems the 115dp volume is REAL and works better then advertised ! I have 75% hearing loss and it works for me ! (cant sleep with hearing aids in so cant hear most alarms I have tried) ! ! !
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.
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!!
G**R
Actually wakes me up
I am a very heavy sleeper, have been using this for a month. Power went out for a couple hours and the clock face and alarms aren’t visible but when power goes back on the time was very accurate when using the battery backup.The noise level is very loud and actually wakes me up. The clock face is dimmable so you can still see it during the day and not blind you at night. Light weight and durable.
C**S
Can adjust volume and sound effects. Can be very loud, or not.
This alarm has settings that will wake you up, and the rest of the house too!
T**)
Chinese junk
This is a poorly made, low quality alarm clock that looks very nice and is functional. On 15 volume it really isn't much louder than the cheapo 1980s alarm clock I replaced for this. Unlike this pretty clock with novelty alarms, the battery backup on my old clock would actually light the display and sound the alarm during a power outage. Battery only retains the time and settings. The plus button to set the time and increase the volume did not work at all, and I was about to return it until I discovered that if I pressed it at a weird side angle it did actually work. None of the other buttons had that issue. It is a very nice looking trashy Chinese piece of junk... but the bugle noise amuses me. Reckon I'll keep it until it inevitably breaks.
J**G
Best clock for hearing impaired.
As a person with hearing problems this clock is perfect. Nice and loud, easy to operate plus the blue lit clock can be toned down so it doesn't glare in the room while sleeping. Highly recommended.
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.
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
Trustpilot
1 month ago
4 days ago