DIN type and are neatly within the dashboard Dolly. Also a little space, such as under dashboard is easy to install and easy to operate. 2 times circuit and has a spare input circuit with the microphone. Each capable of mixing ratios. Broadcast sound quality with adjustable for touch. Click stop on the "The Speech" position There is part of the sound quality adjustment knob. This Position and are great sound quality Microphone for announcements Broadcasting in the United States. Tip Connector allows for amplifier and The connection between speaker is easy. Dedicated Speaker Speaker using the cord connect 2 is not correctly connected).