... tracker/bicycle gps tracker/gps sms gprs tracker vehicle tracking system GSMFrequeny channel850MHz/900 MHz /1800MHz /1900MHzGPRSClass 12, ... messages4,oil and line by remote control5,parking time record6,Wire waterproof7,Anticorrosive8,Anti-beat9,waterproof10,dustproof11 ... corrosion and anti-interference3,Support wide voltage, all vehicle are available, convenient and shortcut4,Unique appearance,Striae ...