Here this Pro-Tech Offender GPS Tracking which has get FCC approval and stated as their Smart One Wearable MTD. This GPS Tracking has been supported by various rules such as exclusion and inclusion zones, schedules, etc, and they are all stored in the device. It works based on GSM/GPRS module and equipped by a sensitive, low power GPS receiver. Pro-Tech Offender Tracking GPS could warn the Offender about a possible violation even in the un-signal area. This devide also has compatible with LED lights and vibration, soft key for offender acknowledgment, support for multiple tracking technologies including GPS, and an advanced motion sensor. Read the details at Navigadget.