If your phone dies, you will not be able to use our system unfortunately. We are developing a solution that will be independent of the phone. Our vibration alert prevents you from losing your phone. Once the ring is at a far enough distance from the phone, it automatically unpairs with the ring, which causes your ring to vibrate and you will know that you have distanced yourself too much from the phone or the phone has died. It works in the opposite direction, too: if you left the ring somewhere, your phone will receive a notification.