Location tracker high quality kid phone at low price, with Network 900/1,800 850/1,900MHz Feature list:GSM850/900/1800/1900 Quad band With GPS&Base station locating technology. High Sensitive GPS chip Hight Sensitive GPS antenna Intelligent Activation of GPS Auto-turn on function Anti-disassembly design Compacted and cabinet design Four groups of special numbers for SOS emergency call Flashing light to indicate calls from different family members. Get locatation information via SMS or service platform Specification: GSM:850/900/1800/1900MHZ GPRS:Class 12,TCP/IP Built-in GSM module GPS:SIRF star 111 GPS Channels:20 Tracking sensitivity:-159Dbm Acquisition Sensitivity:-144Dbm Locating time cost:Hot start:<2sec (open sky) Warm start:<15sec Cold start:<38sec(open sky) Antenna:Built-in GSM dual band antenna,GPS high gain antenna. Four groups of special numbers:1# 2# 3# 4# Key for emergency call:SOS Keypad indicator:1.light green 2.orange 3.light blue;4.pink SOS-red LED indicator:three LED indicator,GPS-blue,GSM-green,power-red Battery:800mAh Dimensions:85.0(L)*45.0(W)*16.5(H)mm Weight:58g Application environment:operating temperature:-25°C to +70°C Operating humidity:5% to 95%