Price: About $70
What: Bluetooth cellphone headsets are great in theory, but for years -- in real-world use -- they had mediocre-to-awful sound (incoming and outgoing) and many models were too complicated to use, especially while driving. But improvements have been made, and this top-of-the-line model from Plantronics scores well in all areas: sound quality, ease of use, comfort and battery life. It even looks less dorky than many Bluetooth headsets, and that's a major plus.
-- David Colker