Support operating system Support Android 2.3 and above systems, IOS5.0 and above Language support Simplified Chinese, EnglishRussian, compatible and support multiple languages Location GPSWIFILBS multi-mode positioning Call function Two way talkSOS calling white list do not disturb modenbsp Power management Ultra-low power consumption power management, smart sleep mode One key SOS Press SOS key, automatic dial-up numbernbsp Smart Geo-fence Automatic alarm when exceeding the setting range Historical route Can check three months historical route Wireless upgrade Software remote upgrading, remote debugging maintenance, remote setting parameters HD camera records a good life Taking photos with high-definition resolution, the display is delicate, truly restores the color of all things, and records the beautiful moments of youth Indoor and outdoor precise positioning Multiple cooperative positioning technology is adopted, which has stronger anti-interference ability, more stable and accurate positioning Remote voice monitoring App set up voice monitoring, parents can know the trend of their children anytime, anywhere, dont worry about their children being obedient The alarm clock wakes up the child Manually set 3 groups of alarm clock reminders to wake up children every morning Voice micro chat Provide high-quality call effect and realize voice chat anytime and anywhere Specification ID style Fashion elegant, waterproof Overall size 48mm31.5mm15mm Total Weight 55g Button Button power buttonSOS button reset button Screen 1.47 inch IPS 172X320 Battery 500mAhnbsp SIM card 1 piece G-sensor Support Waterproof IPX6 waterproof IO port Magnetic Chip ASR3603S Frequency band FDD B1 B2 B3 B5 B7 B8 B20nbsp TDD B38 B39 B40 B41nbsp WCDMA B1 B2 B5 B8nbsp GSM Band B2B3B58 RAM 192MBROM128MBRAM Satellite positioning TD1030 Taidou GPS Beidou double star positioning Camera 300,000 pixels GPS location accuracy 5-15m WiFi positioning 802.11b802.11g802.11n LBS location accuracy 100-1000M Working humidity 5 to 95 non-solidification Testing and certification FCC and CE certification FDD-GSM antenna Laser carving antenna Touch screen GF single touch MIC Supportnbsp Vibrator Support Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.