Hikvision, Interactive screen, for conference, 75", 4K, Android 13, A76× 4 + A55 × 4, 1.8 GHz, memory 8GB, build-in 128GB storage, max 45 points infrared touch control, industrial screen protection, Built-in Wi-Fi realizes wireless screen mirroring without any cable connection, Built-in interactive whiteboard system allows annotating and sharing.built-in 48MP photo camera, 8MP for video camera and 8 microphones