The Network Ceiling Speaker is a PoE-powered, integrated speaker designed for concealed ceiling mounting. It features a built-in 20W amplifier, 80MB storage for up to 20 audio files (WAV/MP3), and supports SIP, ONVIF, and multicast audio for seamless integration with VoIP and video management systems. With playback tasks, remote API (HTTP), and local control inputs, it enables flexible operation. Ideal for background music, real-time voice broadcasting, and security alerts in hotels, offices, malls, hospitals, and conference rooms.