Video Door Phone, Gbargain 7" Color TFT LCD Video Door Phone Doorbell Intercom Night Vision Without Radiation, Low Power Consumption and High Definition 1. Dual-way Intercom and Indoor Monitoring. It allows you to see, hear, and speak to the visitor at your door, you can answer the door in complete safety and comfort. Also, you can see what's going on outside by press monitoring button. 2. Electric Door Release: No need to go to the door to unlock for your guest, just need to press unlock button, but you need to purchase the Electrical lock, the wireless unlock control only supports power on unlock mode. 3. LEDs for Night Vision: Advanced infrared-assisted lighting features, enables you to identify the visitors even during night time. Clear night vision can capture image in low-illumination environment 4. 7" color TFT LCD without radiation, low power consumption and high definition. 5. With 3 year warranty. By with confidence and inspiration.