AA-Smart Model No.: A03 (4G LIVE). The 4G HD Portable Wireless Audio and Video Monitor Terminal is a dedicated device, which is developed by aiming at the application scenarios such as mobile law enforcement, obtaining evidence, administrative supervision and management, as well as other portable monitoring demands from individuals. This product is composed by high-definition video, audio, 4G, Wi-Fi wireless communication module, GPS, Group PTT, real time communication.