Door Viewer MonitorSpecifications1. Size: 105X55X25mm2. Camera: CMOS sensor 300,000 pixels 3. Display: 1.5" TFT LCD4. Power: Battery, 3.7V, 900mAh; Adapter, INPUT 100V-240V OUTPUT 5V, 700mA5. Shell: Plastic material PCPress switch when the Door bell is ringing, visitors image will be displayed...