Serene InnovationsCell Phone Ring Amplifier & Flasher – Cell Phone & Landline Phone Ring Detection with LED Flasher – Works with Cell Phone's Vibration Notifications – Extra Loud Telephone Ringer

I have a 'dumb flip phone' - that is hard to adjust volume for text msgs - have missed several important texts at night - calling for prayer needs or emergency - and found this FABULOUS unit that operates by VIBRATION! - can set phone on it on bedstand at night - has both volume and vibration sensitivity adjustments - and WORKS PERFECTLY!! not one msg have I missed - sends both sound & special lighting alerts - and has bed vibration attachment to purchase if needed - is truly an answer to my prayers - as I can sleep deeply, peacefully - knowing will miss NO more calls or msgs again . .Am truly SO GRATEFUL to have found this important device!!

Perfect for a deaf person

The product rings loudly and flashes brightly when the phone vibrates. My father loves it because he don't miss calls anymore and its so nice that we can get him to pick up the phone finally. I wish it had a phone charger in it , that would truly make it worth the money as it is a little pricey for what it does.

I really wanted this ‘cell phone alert’ product to help my Dad hear/see when he received calls or messages. Unfortunately it did not. It simply did not work at all. Didn’t amplify the sound, nor flash, or even appear to power on. Perhaps I received a dud and others have had better luck with the products they received. I hope so, but I returned mine and requested a refund. Bummer.

This is exactly what I needed and had been looking for quite sometime. When hearing aids are out at night, I cannot hear phone ring or text messages (elderly parent needs contact). I had found other products that worked for land lines but very few for cell phone. I thought I would need the bed shaker, but this is very loud, I will not be needing that option, but great to know it is available. Some reviews mentioned the constant blue light, it is very bright and may be a reason not to purchase if that is your issue, but I slide my phone over to cover the constant light and that is enough for me. Working out great so far.

It will not work if phone has a case - had to return

It’s extremely loud and effective. I use it when I’m on call. I place my phone on it and if I get a call this thing does the job! Great value for the money if you’re hard of hearing.

Bought this for my father in law, he is very hard hearing and between the flashing lights and the loud volume this helps so much, he can even hear his cell phone if he’s in the next room.