Heavy duty push to talk PTT button located on the side. clear sound performance and comfortable holding The casing is made of plastic material Use of high-quality, strong, environmentally friendly PU wire, . and High Quality Model Number: CB-507 Type: Mobile Car Radio Wired Microphone Plastic Connector: 4 Pins Compatible Car Radio Models:for Cobra Radio 7 ULTRA, 18 ULTRA, 19 ULTRA, 19 II,19 DX, 21 CLASSIC, 25 CLASSIC, 29 CLASSIC, 21 , 25 , 29 , 93 , 146 GTL,148 GTL, Also fit most models with 4-Pin screw-on connecter Color: As Shown Material: plastic Package Contents: 1 x Microphone Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.