Serene Innovations Cell Phone Amplifier & Flash Ringer – Cell Phone Call Alert, Home Phone, & SMS Detection with LED Flasher – Works with Apple & Android Phones – Adaptive Telephone Ring Amplifier .

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!!

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.

Love this as a cell phone ringer amplifier. It enables me to hear the phone ring from anywhere in my house. In the event I do miss a call, it flashes bright blue lights to notify me. I would give it 5 stars except that my phone will not charge while on the base. I called the recommended tech support for the company and was told maybe the base wasn’t strong enough to charge my cell phone. What? Overall the company needs to improve its tech support as the gentleman was unable to answer several questions. Also, the instruction manual refers to the reset button, but never tells you where it is. FYI it’s the little white button on top of the base.

I was really hoping this would work so we wouldn't miss calls. We tried it with our iPhone 13 and it did not work in vibrate or ring mode no matter how much we adjusted the sensitivity. But it sure would go off the second you bumped it or put the phone on the stand. Luckily we were still within the return window to send it back.

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.