Key Features - Built-in SIRF Chipset excellent for fixing the position even at a weak signal status. - Built-in GSM/GPRS module supports 4-frequency GSM 850/900/1800/1900 MHz - Supports SMS communication or GPRS TCP connection. - Gets the position information via mobile phone SMS or examine the path on the Internet. - SOS button send out exact location for immediate rescue/action. - Dimension: 1.8" x 2.5" x 0.65" - Net weight: 50g - Application Fields - Working Based on GSM/GPRS network and Internet this product can locate and monitor and remote targets by SMS or internet. - Vehicle rental and fleet management etc. - Handheld portable products - Monitor and protect child elder disabled and can be used for physical distribution and inspect official occasions - Track criminals secretly - Package List - GPS Receiver - 2 x BL-5B 3.7V-860mAh Li-ion rechargeable batteries - Battery charger - 110V-240V AC adapter (Output 5V-1000mA) - User's manual - Software CD CD/User Manual: http://m5.img.dxcdn.com/CDDriver/CD/sku.22599.rar