While installing a Bluetooth setup in your car is all well and good, it's an expensive process that stays put in that car once it's in there. The Blue Ant Supertooth II is a great solution for those folks who want to not only bring their Bluetooth calling capabilities from car to car but also save some cash in the process. All you need to do to bring hands-free chit-chatting to whatever car you're driving that day is to clip the Supertooth onto the visor, and voilà, you've got an instant Bluetooth speaker setup. It boasts the ability to both talk and listen at the same time, and the battery can run for 20 hours of talk time or 800 of standby time. While it might not be as slick as having it built into the stereo of your new BMW, for $130 it's certainly a whole lot cheaper. — Adam Frucci

Blue Ant, via Gizmodo