Features: - GSM quad-band frequency. - Move alarm and SOS alarm. - Mini size, portable to carry with. - Low battery alarm, Geo-fence alarm. - Real time tracking by SMS or GPRS or 3G WCDMA. - GPS and location based service, real-time tracking. - Track private cars or vehicle rental or equipment outside, etc. - Protect child or the elderly or the disabled or pet or property, etc. Specification: Size: 43.2X32 × 136mm Network standard: GSM or GPRS Communication frequency: N850 or 900 or 1800 or 1900Mhz Charging input: Input AC110-220V 50 or 60Hz Charging output: Ouput DC50V 500mA Battery: Chargeable changeable 3.7V500 mah Li- on battery Storage temperature: -40 ° and 85 ° C Working temperature: -20 ℃ and 55 ℃ Humidity range: 5 percent -95 percent non-condensing Package Included: 1 x GPS Tracker 1 x Charging Cable 1 x User Manual Notes: 1. Manual measuring, please allow 1 - 3mm error, thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture. 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.