Sirius Satellite Radio unveiled its first wearable satellite radio, as well as its smallest ever plug-and-play unit, the company announced Aug. 25. The satellite radio provider also announced it would begin offering traffic information for major metropolitan areas in the United States.

The new portable radio, dubbed the Sirius S50, will allow users to store up to 50 hours of Sirius content as well as play MP3 and WMA files. The unit, which measured 1.9 inches by 3.9 inches by 0.7 inches, also features voice-assisted channel navigation. The Sirius S50 is scheduled to be available at retail this October with a suggested retail price of $359.99.

The new Starmate Replay radio, measuring 5 inches by 1.9 inches by 0.8 inches, weights just 3.9 ounces. The unit also can store and replay 44 minutes of content. The unit will retail for $129.99. The Sirius One, at 2.8 inches by 4.5 inches by 0.8 inches, weights 5 ounces and will retail for $79.99. Both units will be available in October.

In November, Sirius will begin broadcasting traffic data for U.S. cities provided by Navteq. The enhanced service, which features mapping services, will debut with 22 metropolitan areas and Sirius plans to expand the service to more than 50 cities by 2007.

The first unit to provide the new traffic data service will be the Siriusconnect SIR-ALP10T tuner, which interfaces with Alpine Electronics NVE-N872A Satellite Traffic Ready navigation system. The suggested retail price for the Siriusconnect unit is $299.99, while the Alpine unit is priced at $1,700, with navigation monitor sold separately.

The traffic data service bundled with regular audio programming will cost $16.99 per month or $9.99 per month for traffic data only.

The Alpine NVE-N872A is scheduled to be available in late September, and the SIR-ALP 10T is scheduled to be available in November.