The Eview Personal GPS tracker is an innovative miniature size personal remote positioning device with built-in GPS and GSM/GPRS technology. Designed for monitoring and protecting people and property it can be used in all walks of life from travelling lone workers and mobile nursing staff to children and the elderly. The Eview Tracker can be monitored locally to anyone's mobile phone (Both voice and data) through to a designated server (Utilising the GPRS data network software) and position locate real-time down to 20mtrs. Apart from monitoring the Device through GPRS technology the Eview Personal Tracker can also send position data as a text message through the GSM network. Using the position data the user can look up the position real-time using online resources such as Google maps or Google Earth. The unit can also be programmed from any authorised mobile phone and extract a GPS position anytime for people location (Lone workers, Children, Elderly, Dementia). Features: Real-time locating and tracking: It can transmit the longitude and latitude coordinates by SMS or GPRS. By this, you can find its location Geo-fence function: It will send an alert to the authorized cell phone numbers when it breaches the restricted area that you set up before SOS function: Press the SOS button and the GPS tracker will send a help alert and exact location to the authorized cell phone numbers for immediate rescue Over speed alarm: The tracker will send the excess speed alert to the authorized cell phone numbers when it is excess speed Movement alarm: Send SMS to the device to start the movement alert function, the tracker will send the movement alert to your cell phone when it is moved Low-battery alarm: It will send an alert to the authorized cell phone numbers when the tracker is low battery. Two way Voice communication: You can talk with the tracking target via the GPS tracker just like a cell phone and also can listen to the sound around the GPS tracker in 3 meter secretly. Note: this feature can also be used to "listen-in" on the wearer of the device in an emergency. Specifications: Dimensions 61 mm x 43 mm x 16 mm Gross Weight: 35g Networks Supported GSM / GPRS Band 850/1900 MHz or 900/1800 MHz GPS chip SIRF3 chip GPS sensitivity -159 dBm GPS accuracy 5 – 20 m Time to first fix Cold 45 sec, Warm 35 sec, Hot 1 sec Charger 110–220 V AC input, 5V DC output Battery 800 mAh Li-ion battery Storage Temp -40 C to +55 C Operation Temp -20 C to +55 C Humidity 5% - 95 % non-condensing