Amazon has the Motorola T325 Bluetooth Portable Car Speaker for only $39.99 shipped, originally priced at $79.99. Unlike other speakers, the T325’s “intuitive design includes an entry on/exit off feature that automatically syncs your Bluetooth-enabled phone with the speakerphone when you enter your car.” Product page.

This clever speakerphone is packed with premium calling features, including an automated phonebook that announces the name of incoming callers. It also gives you one touch access to Bing 411–a service that provides directions, weather updates, movie times, and more.

[via Amazon]