ST-901 Function: - Build-in GPS Vehicles locator. - Support 4-frequency GSM 850/900/1800/1900 MHz which can Work worldwide - Support track the real time address by google link - Built in battery 3.7v 370 mAh - Support Geo Fence Alarm - Main Power Off Alarm(with built battery only) - Support single location - Waterproof ----------------------------------------------- Home Delivery Available Hotline : 0773861778
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