Personal tracking and security device is lightweight, compact, and fits easily into a pocket, backpack or handbag. High sensitivity SiRF III GPS receiver that provides indoor and under-bridge location capabilities. know that children, ageing parents and employees are safe and able to reach them easily if they require assistance. With a simple push of a SOS button, it can alert employers, or loved ones in the event of an emergency. Doubles as a mobile phone and offers security features such as remote audio surveillance for eavesdropping during emergencies or covert operations; and geo-fencing, which triggers an alert when the person leaves a pre-defined area.