You probably listen to your playlists just about everywhere, at work, when you exercise, on vacation, at the grocery store so, of course, you want to listen in your car, too. That’s why you need an FM transmitter.

These devices let you wirelessly transmit your iPod’s music through your car stereo using empty FM frequencies. Most FM transmitters have integrated car chargers, as well.

Some FM transmitters have very few preset frequencies; others have a range of frequencies. Some have an Auto-Scan feature that automatically finds the clearest frequencies, so you can concentrate on the road.

However, be sure to check compatibility before you buy one. Some FM transmitters are for specific iPod models, but most are compatible with any dockable iPod.