Interphone 1.Channels:16 2.Talking distance:5Km -10KM 3.Output power:7W 4.DTMF/CTCSS function Portable Interphone with 16 channels CKS568Specification: Supply PowerDC 7.4VOperation Temperature-20-+70Memory Channel16AntennaRubber antennaAntenna Impedance50ΩGround Methodnegative electrodeDimension117*58*30mmWeightAbout 140gFrequency Range400-470MHZTransmitter:Output Power7WModulation ModeFM(F3E)Max ...