... field. With four data transmitting modes as GPRS, CDMA, Built-in Radio and URS (UHF Radio Station) Intergrated Data Transfer, ... conveniently.Versatile CommunicationWith four data transmitting modes as GPRS, CDMA, Built-in Radio and URS (UHF Radio Station) Intergrated Data Transfer ... rang from base station. It does equal to GPRS or CDMA in non-network area for long-distance data transmit.URS is ...