ITC T-7702A 7-inch Touch Screen Desktop Intercom Paging Microphone, Network Interface: Standard RJ45 input, Support Protocol: TCP/IP, UDP, IGMP (Multicast), Audio Format: MP3, numeric and function keys interface, Support paging to single/multiple zones or all zones, compatible with routers/switches/ bridges/gateways, Built-in 2W full-frequency hi-fi speaker, One φ3.5 headphone jack and one φ3.5 MIC input socket, 40V 50-60Hz (power adapter), DC24V/2A.

ITC T-6702A Desktop Paging Microphone with 7 inch Touch Screen، number keys & function key interface, Support one key call single zone & whole zones, Embed PC technology, Built-in DSP Audio processing technology design, Built-in single network hardware audio decoding module, support TCP/IP, UDP, IGMP (Multicast) protocol, transmit 16-bit stereo audio signal of CD quality through network transmission, Support two-way intercom function, Support multiple call strategy, Built-in 2W all frequency Hi-Fi speaker, dia. 3.5 headphone socket and a dia. 3.5 MIC input socket, 4Ω, 2W.