The ET-C58D is a hybrid radio combining digital DMR operation with 4G PoC (Push-to-Talk over Cellular) connectivity. It features AES256 encryption, IP67 waterproofing, a high-definition display, dual PTT keys, optional GPS, text messaging, and recording. With three selectable modes (LMR only, PoC only, Hybrid), it enables flexible and secure communication across radio and cellular networks, suited for modern enterprise, security, and fleet applications.