The Inrico TM-7 4G/WiFi network radio is the first mobile network Radio. Great for amateur radio use with the new IRN platform, for Zello, Team Speak 3 and Echolink via 3G or WiFi. And it works as WiFi hotspot too! For Radio Amateurs this unit gives the opportunity to explore the fascinating world of POC radio giving access to some great radio networks (Call sign required for IRN & EchoLink) For non licensed operators with a sim card you can chat like CB but with no interference on a one to one or open Chat Android based POC Radio (PTT over Cellular) The Inrico TM-7 network radio is the first mobile network Radio. Great for amateur radio use with the new IRN platform, for Zello, Team Speak 3 and Echolink via 3G or WiFi. And it works as WiFi hotspot too! For Radio Amateurs this unit gives the opportunity to explore the fascinating world of POC radio giving access to some great radio networks (Call sign required for IRN & EchoLink) For non licensed operators with a sim card you can chat like CB but with no interference on a one to one or open Chat Please note this does not transmit on RF only via WiFi or 3G network Sim required for 3G use