Based on GSM/GPRS and GPS, you can locate and monitor any remote targets by SMS or GPRS. Auto Report position. Send the last location if it enters into the blind area. Monitoring and SOS feature. It will send an alert of Geofence to the user when it breaches the restricted area. over speed alarm low battery alarm Application Vehicle for rental or manage of outside equipment,etc. Protect the elder,kid,employee and pet,etc. Protect the businessmen. Manage the outworker. Dimension 46(L)x64(W)x17(H) mm Weight 50g Network GSM/GPRS Band at 900/1800mhz or 850/900/1800/1900Mhz (Additional cost) GPS chipset SirF III chipset