GF21 GPS Car Tracker Remote Locator Vehicle Anti-Lost .

Mobile client/micro-messenger/computer service platform, multi-control mode. Intelligent Power Saving: Turn off/turn on GPS and data upload in time. Device shutdown and restart function can be realized by guardian's mobile phone APP. Remote monitoring: a highly sensitive microphone that monitors the surrounding sound in real time in case of an emergency. Class anti-interference mode: set the non-interference time range through the guardian's mobile phone APP, and shield the incoming calls from the equipment. Two-way Call: Address Book Number Calls with Users.