80W 2-Zone Network Amplifier, supports Real-Time and scheduled Tasks, Resume Play and Audio Material Library Management, support Alarm Input, Arming Schedule and Audio Linkage, support TTS Speech Synthesis and Text Broadcasting, with natural and smooth standard Male and Female dual Audio Options, support multiple Types of Audio Source Input: Bluetooth, USB Flash Drive, Microphone and RCA, with flexible and convenient operation, independent Microphone Volume Control, 2-ch Partition Volume Control, support 2-ch Audio Mixing Output, support 100 V COM, support ISUP, EZVIZ Cloud and ISAPI Protocol, adopt High-Strength Engineering Plastics, sturdy and durable, integrated functional Design, convenient and reliable