Prox PRD - Phone Separation Alert Device | Stop Forgetting or Leaving Phone behind at Home, Work, Restaurant, or Car | Proximity Alert Notification Approx 50-150Ft | Stay Connected | No SubscriptionSTOP FORGETTING YOUR PHONE GET A RELIABLE PHONE SEPARATION ALERT BEFORE YOU LEAVE YOUR PHONE BEHIND (NOT A TRACKER): Using patented Advanced Alert Technology, alerting only when the Prox PRD is moving, the PRD will alert you when leaving proximity of your phone; typically 50ft to 150ft away. Alert distance range can vary greatly and may be shorter (w obstructions) or farther when outdoors. The PRD does not alert at very short distances such as 10