I have profound hearing loss in both ears, wearing a cochlear implant and hearing aid, and only wake up in the morning to a bed shaker vibrating under my mattress. Lately, however, I have 3 shakers under there and countless wires leading to the various devices attached to them (1 for a cell phone signaler and 2 for an alerting system). One of the long wires must have slipped to the floor while I was making my bed the night before because one morning, when I stepped out of bed, I stepped into the loop created by the sagging wire, tripped, and found myself flying into my bureau. Needless to say, I was thrilled when I found this wireless product. I've always been happy with Serene Innovations products (my alerting system, bed shakers, and phone signaler) and was thrilled when they created the same bed shaker, which almost caused my demise, without all the wires. Not only can I feel this under my mattress but I've also eliminated my cell phone signaler (which I use for a second alarm clock) because this new device wirelessly connects to it. This will be a great benefit when traveling. I'm striving to become a minimalist with my CI and hearing aid apparatus and this device has taken me one step closer to my goal.

As with most others needing this product, the wireless aspect of it works great for the alarms. Here's where it falls short for my use. I have severe hearing loss and am a heavy sleeper. Problem is it doesn't keep shaking for long at all. If not roused from sleep quickly and turned off it stops shaking. I've slept through two alarms (it's a recent purchase) and have gone back to using my phone as my alarm. The app has no way of customizing the vibrations. Or making it continue to shake till turned off. Also no other notifications for calls, texts, emails shake the shaker. I'll keep it and hope some updates can fix the issues

I must say I was skeptical whether the shaker was strong enough to wake me up, but it works great. I put the shaker under my pillow inside the pillow case and the vibration is very strong. I recommend this to anyone that can't hear a cell phone or an alarm clock when asleep.

I am deaf and this product works great. I put it under my pillow inside the pillow case. I felt vulnerable not be able to hear my phone ring if there was a middle of the night emergency, but I sleep much better now knowing I will be awakened if someone is trying to contact me.

I am not deaf, but hearing is bad enough that I sleep through audio alarms. Shaker worked fine paired with iPhone, and is slim enough to fit under pillow.

I bought this strictly for the vibrating alarm feature. IT works GREAT! and the App was easy to navigate as well. I'm glad I decided to spend a little extra - IT WAS WORTH IT!