Màn hình chuông cửa IP ZKTeco Vpad A2  – 7-inch capacitive color touch screen. – Built-in 2.4G Wi-Fi. – HD voice speech quality with built-in 2W speaker and Acoustic Echo Canceller (AEC).  – Possess 8 alarm inputs and 1 RS485 interfaces. – 10 interfaces to meet the needs in different application scenarios. – Support online management and upgrade. – Bảo hành: 12 tháng. Vu Baosmnet.vn