Review on Liotoin Caregiver Pager Wireless Nurse Alert System - Vibration Pager Call Button for Home, Elderly, and Patient - 600+ Feet Range (1 Portable Receiver, 2 Plugin Receivers, 2 Transmitters) by April Goracke

This is a great affordable product! Very happy with it. Setup was very easy: just plug and play. I have receivers hooked up top and bottom, and I have a portable receiver that I can take out in the yard. I left the receivers on the default ding-dong tone. They are very noisy - you wouldn't get enough sleep. This is perfect for someone, especially the elderly, who need to be able to let you know when they need help. All they have to do is press the glowing red button.