I am single sided deaf (SSD) in my right ear. So when laying in my left ear I need this clock. Nice loud alarm as well as a big shaker to wake you. You can adjust to have just alarm or shaker or have both go off. You can also adjust the volume of alarm and how much ‘shake’ you want. Very easy to set time and alarms. I had another brand that was not easy to adjust and it ended up breaking while trying to set alarm. This one is very sturdy and won’t break when setting times. Only thing I wish it had was a reverse on setting. Only goes forward so if you miss your time you have to go all the way around again. It does have a fast and slow settings so just be aware of your timing. Would definitely recommend buying this.

Really helps me getting up in the morning. Thank you Sonic Alert

Hardste wekker op de wereld. Absolute lifesaver voor mensen door wekkers heenslapen. Trilapparaat gebruik ik niet. Maar waarschijnlijk handig als je de buren niet wakker wil maken.Aanrader.

i highly recommend it

Certain d'être tiré du sommeil, avec ce réveil-là : ça sonne et ça vibre et ça vous secoue allégrément!Vous avez trois possibilités de réglage : Alarme 1 seulement (une seule sonnerie) - ou bien Alarme 1 + Alarme 2 (vous réglez 2 sonneries à quelques minutes de distance) - ou bien Alarme 1 + Alarme 2 + le vibreur - et alors celui-ci vous fait trembler, pour peu que vous l'ayez mis sous votre oreiller! Voilà enfin une sonnerie valable (vous pouvez même la régler au point de réveiller toute la maison!) avec en plus, un vibreur qui ne plaisante pas , et qui peut suffire éventuellement : sûr en tous cas, de ne pas rater l'heure des rendez-vous ou des trains!J'apprécie le cadran qui reste allumé en lumière rouge, bien pratique pour voir l'heure dans la nuit, et pas gênante du tout pour dormir.Le réveil est branché sur le secteur. Il faut y mettre une pile de 9V (non fournie) de façon à ce que la batterie de secours vienne prendre le relais en cas de coupure de courant.Il y a une petite notice, assez sommaire, pour le réglage de l'appareil. Je conseille fortement de faire quelques tests en plein jour pour s'assurer de ce réglage.Ce réveil me paraît hautement recommandable à tous les malentendants comme moi.

This clock is suitable for any hard-of-hearing person, as it has three different methods to awaken you: 1) Audible beeping sounds 2) bed shaker, or 3) combination of 1 and 2. The clock has a battery compartment which powers the clock's time and alarm data during power outages, but the clock time still has to be changed manually according to the DST (Daylight Saving Time). Setting the time manually is cumbersome and you have to use both hands to press the "hour" button while pressing either "fast" or "slow" buttons at the same time. This is why a star is missing in the rating.

I am a very light sleeper and the only way I can sleep is by using earplugs that block out most noise - obviously the problem is that it also blocks out most of the alarm clocks I use, including loud twin bell alarm clocks. Also, since I started taking blood pressure medication, I found that I have been sleeping much deeper and have a lot of problems waking up. Then someone recommended this alarm clock, and honestly, best purchase I've made this year. I know it's enough to wake the dead it's so loud, but it has me up on time and that is all I wanted. I actually didn't even need to use the bed shaker, but just grateful to have found something that finally wakes me up and is super loud - so very happy with the product and features. Took some adjusting to find the right volume for the buzzer, but there are different buzzer options, and you can dim the clock also, which I found useful - I have it on the lowest setting so the glare doesn't bother me in the night.

We finally found a product to help us wake everyone (in the house) up in the morning. I ultimately bought this for my wife (who is legally deaf) because when she is sleeping, it is unbelievably difficult to wake her up enough that she does not just immediately just roll over and go right back to sleep. If you're looking for something for someone you know like this (hearing impaired or not) you know what a difficult time it is go get them up and moving. I needed something that would motivate her into moving and actually 'wake her up'. Well, this item does the job. Even in the most sound sleep, the vibrating alarm feature does the trick. It literally shakes the floor as well as the whole bed making this alarm impossible to ignore. Ever other alarm I have tried in over 20+ years really never did the job. Mainly the "ignore factor" for every other alarm clock did nothing to actually get her up and moving.With this device, there is the very loud noise factor which is great for everyone, but besides the audible alarm and the vibrating puck under the mattress, there is a bank of lights that flash which adds to the alarm as a whole in making sure it wakes everyone (in the whole house, no matter where they are).Also, I should note that the cord to the vibrator unit (we put under the mattress) is completely suitable to placing the alarm away from the face of the person sleeping. Even on low, the light from the digital display is still bright enough to keep anyone that does not sleep with a sleep mask on, awake. I put the clock portion about 3+ feet away from the bed, on the other side of the night table so it absolutely wakes her up. She has to get up out of bed to turn off the alarm (plus, avoid the stampede), which makes her angry as a hornet, but it gets her up and moving (which was the whole point of this alarm)."Everyone up!" I should note that with this alarm, she is up and moving in less than 4 seconds. OK, it is mainly to get out of the way of a stampede of big dogs she has encircling her, all jumping up, trying to avoid whatever it is shaking the bed loose from the floor. I have actually gotten up earlier than everyone on numerous occasions, just to watch what happens when the alarm goes off, just to watch the stampede and the ensuing turmoil. It is good to find a product that fits a niche (like I have at home) as well as it is always good to have something happen in the first moments of the morning (a stampede of dogs for example) to make it a great start to the day (at least for me).NOTE: Test this device with 'everyone' (that lives in the house) around 'before' you use it for the first time. For the first couple days you use this, make sure no one panics. The first day, everyone thought this was a fire alarm going off and the jolt of the vibrating puck added to the confusion. I highly recommend that you test it a couple time (so everyone in the house can hear what the alarm sounds like) to make sure no one thinks there is a fire.This alarm could 'possibly' be confused with the alarm sound of a home fire alarm. I recommend you have everyone go to their own bedrooms and allow the alarm to go off (a couple of times?) to get them used to the alarm sound. Hey, this thing can be heard throughout my entire house when it goes off and it did cause a panic the first morning it went off. We had kids with flashlights and fire extinguishers coming from all directions that first day. I am just glad no one called 911 and had the fire department show up. I would not want to be on the local news as "Family calls 911, Fire department responds to family's new alarm clock, news at 11" or whatever. This is pretty close to what happened. Plan ahead if you get this!

This clock is getting rather mixed reviews and I was a little worried when I bought my first one about a year ago. I bought it for my son, who was a senior in high school. He slept through all of the alarms that I bought at Wal-mart for him. He would then be late (or not go) to school and the principal would call me to ask where he was. (I swear the principal had me on speed dial!) After I gave my son this alarm he never slept through his alarm again. He did leave school early on numerous occasions (and the principal kept me on speed dial) but an alarm clock can only do so much at helping with parenting. (He graduated, thank God, and uses the alarm to wake-up for work now.)My son's alarm has worked perfectly since the day it arrived, so I had no qualms in deciding to buy one for myself last April. I am hard-of-hearing and I like the vibrating disc that goes under my mattress. It wakes me up right away. I don't even put on the noise--just the vibrator. It works great! It has gained 2 minutes in 5 months. I think people should READ THE DIRECTIONS and set the switch on the back for USA electric currents!My son-in-law and daughter sleep through their alarms all the time--even when they have 2 or 3 of them set! I gave them my Sonic Bomb alarm clock 3 days ago and he has woke up on time every day since!That is why I am purchasing my third one today. I need another one for me. These alarm clocks are great and I highly recommend them to heavy sleepers, hard-of-hearing, or even profoundly deaf people.There are some features the clock has that are not mentioned in the description of the clock:1) It has battery back-up--so when the electric goes out (ours goes out about 15 times a year) the clock still keeps time.2) The alarm has the ability to be on just noise--really loud annoying beeping, which can be adjusted for loudness and tone (for hard-of-hearing people who hear some tones and not others)Or you can put it on just vibrate--for people like me who don't like to wake-up with adrenaline pumping through my body. Or you can really juice it up by putting on the noise AND vibrate your bed, which my son and son-in-law both use to wake-up.3)It also has flashing red lights that go off when the alarm does to help people wake-up.I do not have anything bad to say about the clock. I highly recommend buying one. Just make sure to read the directions pertaining to the switch on the back about setting it for which country you will be using it in.August 9, 2012 Update: All 3 of our alarms are still working great!February 9, 2014 Update: All 3 still working fantastic! The best alarms we have ever owned!August 19, 2021 Update: My alarm is still working great!! Keeps great time and the vibrator is still functioning perfectly!! Wakes me up everytime. I assume my married kids' alarms that I gave them are still working or they would have asked me where to buy a new one, Lol