Kenwood Original MC-60A Deluxe Desktop Microphone 8-Pin Connector (All Kenwood HF & Mobile Radios with Modular plugs need the MJ-88 Adapter Not Included) Communication Type - Dynamic Unidirectional Moving Coil Type Mic Element There is a switch for PTT (push to talk) & lock feature Compatible with Kenwood radios using round 8 pin mic connectors Frequency Response: 150Hz to 10kHz (-6dB) with the Preamp off and 200Hz to 7kHz (-6 dB) with the Preamp on Can be used with some Kenwood RJ-45 equipped radios by using MJ-88 adapter