The Onyx Vibration Alarm clock
The Onyx Vibration Alarm clock is a very useful product for people who don't want the abrupt alarm of a phone and who don't want to keep their phone in the bedroom while sleeping. At first, I had several days where I couldn't wake up to it, but then I got used to it. Felix's tips to turn on all three alarms and wear the band tightly especially helped make sure that I woke up. My advice would be to set a backup alarm on your phone just in case, until you get used to waking up to the vibration. Overall, it's a great product, and I am now very satisfied.