Review on Wake Up With Ease: ANJANK Extra Loud Dual Alarm Clock With Bed Shaker And USB Charger Port For Heavy Sleepers And Hearing-Impaired by Teri Cantu

This is annoyingly loud which is a good thing to help me hear and wake up. The vibration is very strong.the first night scared the crap out of me in the morning when it went off! I dislike worrying about getting up in the morning on time for fear of my hearing aid battery dying while I'm asleep. This pretty much eliminates that worry. I tried another model and it had a cord attached to the vibration disk. That cord got in my way so many times with being a stomach sleeper. I needed something that I wouldn't constantly be getting trapped in the cord and pulling the alarm clock down on top of my head. I love the wireless option! Just make sure ya change the batteries on the vibrating disc when you notice the vibrations aren't quite as strong as they were in the beginning, or you'll only be left with the alarm sound. Getting the vibrating disc to sync with the alarm clock was a little tricky as the directions aren't very clear. So here's what worked for me: after alarm clock is plugged in, put batteries into the vibrating disc. You'll see the light on the disc blink green, press the match button on the clock before it stops blinking (I think irs like 6 seconds). Once you press the match button, the disc should vibrate. That's how you know you successfully linked the units up.