Although talking on a cell phone while driving is illegal in many cities and states, a Bluetooth headset can allow people to talk without using their hands, thereby making it legal in most parts of the United States. MSNBC gave examples of some great headsets under $100, including the $39 Motorola HX550.

"The Motorola HX550 impresses consumers and expert reviewers with the clarity of the sound on both ends of the line," according to the news source. "It weighs only 9 grams, and users find it comfortable enough to wear continuously on long drives. It promises nine hours of talk time and 16 days of standby time."

MSNBC said other great, inexpensive headsets include the LG Tone HBS-700, starting at $45; the Jabra Wave, starting at $42; and the Jawbone Icon, starting at $50. The Icon looks less like what it is and more like a fashion accessory, the news source said, with a different finish than most Bluetooth headsets.

Features to consider for a Bluetooth headset include call quality, noise cancellation, battery life, comfort and range, according to PC Magazine. All of these will be important when making calls.