GP-328 Stable Chinese Powerful 16 Channels Wireless intercom system Frequency:1.FrequencyRange:VHF:136-174,430-470,450-527MHz2.Outputpower:1W/5W3.Channel:165.Emergencycall6.BuildinCTCSS/DCS7.DIMFANI/DTMFPaging8.Autoscanprioritychannel9.TOTfunction10.BatterySave11.P.Cprogramming12.TalkRange:5-10km13.Dimension:13.7cm*5.75cm*3.75cm(exclude)14.Weight:420g(includebattery)