... GPS (Optional); 3. Support Voice/Data Encryption; DPMR Digital walkie talkie TCB TM208Specifications and Parameters: Frequency Range: 400 ... 5:90 Working Cycle) Protection Grade: IP57Features: Analogue-Digital Compatible Build-in GPS (Optional) Support Voice/Data Encryption ... Emergency Command, Supermarket, Tourism, Transportation, Construction, etc. Hot sale! Professional Digital Two way radio TM208