GME MC553B Rugged Professional Microphone to suit TX3510, TX3520 and TX4500 series radios Extensive engineering research and development has culminated in a microphone designed to brush off the toughest of Australia s conditions with high performance and durability. The MC553B rugged professional microphone is all about performance and will quickly become the default choice for high use applications such as heavy vehicle owners. MC553B Features: Replacement Microphone for MC513BRugged commercial grade housingTested to over 1,00,000 PTT switch cyclesExtra long & durable curly cordSteel reinforced mounting bracketGME 1 year warranty In the Box:MC553B MicrophoneMB206 MountScrew packet