The Included 3.5mm to 2.5mm adapter takes the guess work out of the microphone you need. Install the microphone directly to your 3.5mm receiver or use the adapter to install in units with a 2.5mm MIC port. | This aftermarket Microphone is compatible with Pioneer, Kenwood, Alpine, Sony, Panasonic, JVC, Jensen, and many others 2.5mm or 3.5mm MIC ported receivers. | Adopting electret condenser omnidirectional microphone with high sensitivity, low impedance, anti-noise and anti jamming capabilities. | Includes dash mount and visor clip. | Wire length 3m (9 feet).