Guardian Sentry Pendant,Alert,Alarm Calls & Texts up to 5 People Automatic Fall Detection GPS Tracking Low Battery Alert 2-Way Voice Communication Best Geo-Fence Functions Strongest Antenna Water Resistant Includes Magnetic Charging Unique to Guardian – Speed Dial 3 Phone Numbers – Extra Loud Fall Warning – Sequential or Simultaneous Texts Sentry info – Wearable Options … Continue reading Sentry Safety Pendant