1. The super mini GSM tracker, fastly positioning, low power consumption chip design 2. WiFi+GPS+LBS+AGPS positioning methods working at the same time 3. GSM quad band network and WiFi fence 4. Support Website/iOS APP/Android APP/SMS 5. SOS alarm, fall alarm, historical route, two way calls, mute answering calls, talking clock 6. Long standby time

http://olla.gr/v28-necklace-style-gsm-mini-lbs-wifi-agps-tracker-sos-communicator-black/