All FM transmitters

The Bottom Line: The Eznex ENA7000 EzCube FM transmitter is a great performer in a teeny, tiny package, and is a good choice if you don't mind the messy setup.

The Bottom Line: The Griffin iTrip Universal isn't ideal as an in-car transmitter, but its USB power and small size make it well-suited for use around the home.

The Bottom Line: Unless it's selling in the dollar bin, steer clear of the i.Sound Wireless Waves FM transmitter.

The Bottom Line: The Sony Ericsson MMR-60 FM transmitter delivers music from your phone to your stereo.

The Bottom Line: The Griffin iTrip Pocket wins points for its supersmall and stylish design, but its weak FM transmission can't hold water in urban areas.

The Bottom Line: The Belkin TuneFM scores points for its compact form factor, but if static-free music is what you want from an FM transmitter, you'd better look elsewhere.

The Bottom Line: The Belkin TuneFM scores points for its compact form factor, but if static-free music is what you want from an FM transmitter, you'd better look elsewhere.

The Bottom Line: The Belkin TuneFM scores points for its compact form factor, but if static-free music is what you want from an FM transmitter, you'd better look elsewhere.

The Bottom Line: If you want to bulk up the sound of your PSP without running cables to your stereo or a set of powered speakers, Griffin's iTrip for PSP is a nice--though slightly pricey--solution.

Editors' Take: Even though it's definitely not one of the more effective FM transmitters we've tested, we liked the AirPlay's minimalist design and decent sound quality.