Accessory Hub for Rugged M1 Mobile Radios Pumper Parts and Accessories The M1 and RDM-DB radios

The M1 and RDM-DB radios feature a speaker modification which allows for use of the External Speaker without additional adapters or cables

you can do so on a digital channel

Waterproof push to talk

Does not work with STX Stereo intercom cables

Accessory Hub for Rugged M1 Mobile Radios Pumper Parts and Accessories The M1 and RDM-DB radiosConveniently access your programming data port and 3. 5 mm external speaker output with our Accessory Hub! This cable connects to the rear panel of the M1 mobile radios and should be installed in an accessible location near the dash. Note: ACCS HUB Accessory Hub is included with the M1 radios in box.