The Bomb Alarm Clock With Super Shaker - Blue, Black

It works well and is very loud. The super shaker is a plus but I opt to use it without sometimes because it shakes the bed violently.

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No idea how good this is as we can't use it without finding an alternative plug. Supplied am American plug to UK market.

I bought the Sonic Alert Sonic Boom dual alarm because I’m a very heavy sleeper, and this alarm absolutely does what it’s designed to do. The alarm is extremely loud and impossible to ignore. Even on a lower volume setting, it’s still very effective. The dual alarm feature is really helpful. I can set two separate alarms, which is great for different wake-up times or as a backup to make sure I don’t oversleep. The bed shaker is another big plus — it’s strong enough to wake me up immediately and works well when placed under the mattress. The buttons and display are straightforward and easy to use, and the large numbers are easy to read, even from across the room. Setup was simple, and once set, the alarms are consistent and reliable. Overall, this alarm is perfect for heavy sleepers or anyone who struggles to wake up with standard alarms. It’s loud, effective, and well worth it for peace of mind.

Very good as a quality but the features are not easy to use

I’ve had this for about a year now and it’s very loud and the only thing that really wakes me up. The rattler sadly broke because I had it rattle on my floor for almost daily for about a year. The alarm still works good enough to wake me up