Do you want to keep an eye on your spouse? Do you think she is up to no good? It would be nice to know where his or her vehicle is at all times especially if the vehicle is stolen! This is 2 band GPS transmitter that can provide with all sorts of information such as location speed and location. It uses a highly sensitive JRC chipset and has an SOS emergency rescue feature. It can be easily tracked via SMS for GPS coordinates. - Main color: Black - Supports GSM 900/1800MHz - High sensitivity JRC GPS chipset - GPS sensitivity: -164dBm - GPS frequency: L1 1575.42MHz - Positioning accuracy: 2.5mCEP - Speed accuracy: 0.1 meter/second - Time accuracy: synchronous with GPS time - Speed limit: max 515 meters/second - Real-time positioning - Mobile phone positioning - SOS emergency rescue - Track by mobile SMS to get the GPS coordinates - IP65 waterproof design - Working temperature: -25'C to 70'C - Voltage: 12V - Connection cable length: 30cm - Accessories: - 1 x Power extension cord - 1 x External power switch - 1 x Software CD http://m5.img.dxcdn.com/CDDriver/CD/sku.73004.zip