This speaker microphone has a Push To Talk (PTT) key . A connector on the microphone lead plugs into the radio’s front panel. The microphone has been designed for maximum durability. It contains impermeable silicon treated membranes which eliminate corrosion problems caused by moisture. It also has a sealed microphone switch to protect against corrosion.

A RJ45 connector on the microphone is suitable for the following Kenwood mobile radios - TK-760G, TK-762G, TK-763G, TK-768G, TK-780G, TK-860G, TK-862G, TK-863G,  TK-868G, TK-880G, TM-261, TM-271, TM-461, TM-471, etc... 

A 8P connector on the microphone is suitable for the following Kenwood Mobile radio-TK231,TK241 etc...