This is great for times when you need to wake up without waking up your significant other or room mates. It's also excellent for people who don't hear their alarm clock when it goes off. It can clip to the side of your bed or go under your pillow. Works great. You can either set it to " vibrate " only or have the audio alarm set as well. Check out the specifications below;
90 db Extra-loud alarm
Sonic Shaker bed vibrating unit
Pop-up display with convenience light (manually lighted display up to 50 percentage longer battery life)
Easy to set function keys