* VHF/AM/FM Modular Communications System.  
* System consists of a transportable base station which includes Model TFM-138B and Model 91-DE,
* VHF/FM and AM transceivers in rugged portable chassis with front and rear protective covers.  
* Operates with external 110Vac, 12Vdc or 28Vdc.  
* Audio available via internal speakers or headset jacks.  
* Protective covers store the microphone and power  cables which are included.