s-911 bracelet locator- Provides real-time tracking via GPS, GSM or GPRS, has an emergency SOS button, a tamper alert if the watch is removed, works inside buildings as well as outdoors, and can be configured to send custom alerts based on location. SOS Emergency button to call 911 or designated phone number for 2 way voice communications. Encryption with 128 bit to secure the private communication data link. Tamper detection for opening the case Smart Card chip built in to provide the security key for parole system applications Individual Geo-Fence capability within / without of the Geo-Fence alert.