The Good The Griffin SmartTalk Solar automatically turns itself on and off when you enter and exit the vehicle. Simple Bluetooth pairing eliminates the need to enter a PIN. A solar cell allows the SmartTalk Solar to charge itself in direct sunlight.
The Bad Outside of the solar-charging gimmick, this is a very basic Bluetooth speakerphone with no advanced features.
The Bottom Line The power of the sun means that you'll never have to think about charging the Griffin SmartTalk Solar.
Griffin SmartTalk Solar
The SmartTalk Solar from Griffin Technology is, at first glance, a simple Bluetooth speakerphone. The unit measures slightly over 3.5 inches in length and just a bit under 2 inches wide (comparable to the footprint of a business card) and is about .5 inch thick. It has four buttons for volume up and down, mode select, and a large multifunction button -- so called because the multifunction button is used for virtually all of the device's functions. The face of the unit is also home to a small loudspeaker and a hidden echo-canceling microphone. In the box, you'll also find a 12-volt-to-USB charger and a short length of Micro-USB cable.
However, on the back of the unit (where standard speakerphones have a visor clip) the SmartTalk Solar features a photovoltaic cell -- more commonly known as a solar panel. That's because the SmartTalk Solar's standout feature is that it can be charged with the power of the sun. Rather than a visor clip, the SmartTalk Solar ships with a transparent plastic cradle that leaves an opening for the solar panel and attaches to your car's windshield with a pair of suction cups.
If you find yourself worrying about the SmartTalk crashing down on you while you're driving, know that the unit weights next to nothing and the suction cups will only release the device from a clean windshield with significant effort on the part of the user.