This device's amplified ring can be set as high as 120 decibels and the strobe light is sure to get attention. Great for anyone who does not want to miss another phone call. The Krown RA-05 amplified ringer with strobe light, monitors your phone line for incoming calls. When receiving a call, it will alert you with a 120 dB amplified ringer and bright flashing strobe light. This is wall mountable. Plugs directly into your phone's jack. 3 AA batteries required for backup, not included. Box dimensions: 4.75"H x 3"W x 1.5"D.
Works as advertised. My elderly mother who is hard of hearing can now clearly hear when the phone is ringing. Instead of putting screws into the wall, I used two sided tape and it holds securely. A small Phillips screw driver is needed to install the backup batteries. Use the correct size to avoid stripping the screw heads.
Pros:Loud ringing sound plus flashing strobe to provide visual indication.
Overall: Yes, I would recommend this product.