... 2. Super easy installation 3. Two-way talking,Video Call car alarm system gps gsm , Emergency Call, Real-time remote MonitorShape is ... the emergency button to trigger the alarm function, can choose the hidden button to trigger the alarm.7, TALK key telephone functions: ... alert to make outskirts rescue .√√√outstanding feature 2it has a hidden panic button , you can press it for emergency help√√√ ...