My dad refuses to address his hearing problem, and I’m looking for a wireless doorbell that gives off a good flash as it dings. I keep finding ones that sort of glow, etc, but I need it to have at least 4 receivers and flash so you’ll notice even if you’re turned away from it. Amazon and Newegg are being little help.
I found this link . You can see if your dad phone company will give him a free flashing light for when the phone ring . I had one and it woke me up from a deep sleep!