... in 2U heightBuilt-in single channel TCP/IP decoderDecode digital audio data to analog amplifierHeart of IP background music, zone paging ... , 1 input, 2 outputProtocol SupportTCP/IP, UDP, IGMP (group broadcasting)Audio FormatMP3/MP2Sampling Rate8K~48KHzTransmit Speed10MbpsAudio Mode16 digit stereo CD toneFrequency ...