GF21 إشارة الملاحة عبر الأقمار الصناعية باللون الأسود

Made of superior material, has high durability and endurance. Remote pickup, remote recording, voice-activated callback, voice-activated recording, high-definition microphone. Real-time tracking, historical track, Vibration burglar alarm, electronic fence, built-in strong magnetics, multiple power-saving modes, low-power alarm , remote switch machine. SOS Call for Rescue: In case of emergency, press the SOS key, that is, to send a call and information to the guardian for help. Device Loss Can be found by mobile-App. Pedometer: to measure the user's walking data. Alarm Clock: Set by Guardian Smartphone App. Two-way Call: Address Book Number Calls with Users. Class anti-interference mode: set the non-interference time range through the guardian's smartphone APP, and shield the incoming calls from the equipment. Remote monitoring: a highly sensitive microphone that monitors the surrounding sound in real time in case of an emergency. Device shutdown and restart function can be realized by guardians' smartphone APP. Mobile-client/micro-messenger/computer service platform, multi-control mode.