Specifically for use with Sirius service. High performance on Sirius frequencies. Extended range. 10" tall. Stainless steel mirror mount. 17ft super heavy-duty RG-174 cable. Gold-plated connectors with PTFE insulators. Avoid satellite signal dead zones. The Tram Satellite Radio Mirror Mount Antenna is compatible with Sirius services and mounts to your mirror to extend your radio's range.