Feature - Color: As shown. - Material: ABS. - Size: About 14 x 9 x 6cm/5.5 x 3.5 x 2.4inch(LxWxH). - sends back location data via mobile phone's SMS. - It is suitable for most of cars, trucks, motorcycles etc. - This is mini waterproof and easy to use with ACC detect ignition. - About main power off alarm, it means when disconnect the car battery,device will send sms alarm, which is very useful if the thief tries to disconnect and steal the car.(this function just works with built-in battery device). - The Mini have ACC detect igintion(orange wire),if you don't need it, then disconnect orange and the still works. - Before you use the online platform, please set the server IP, Port and APN(Acess Point Name) of your SIM by SMS command. - Note: This product only supports 2G network. Specification - Location accuracy: 5 meters - Operating temperature: -20 to 55 C - Operating humidity: 5% to 95% Non-condensing - GSM quad band GSM 850/900/1800/1900Mhz - Built-in battery capacity: 350MA