If you own a cell phone with a music player built in, the best way to take advantage of both capabilities is with a stereo headset. That is, a pair of headphones with an integrated mike and call-answer button.
Plenty of music phones offer stereo Bluetooth capability, which lets you take calls and listen to music through a headset without pesky wires getting in the way. But at this stage in the game, the sound quality generally will not be as good as what you can get through a decent wired set. Better yet, wired headsets are often cheaper than the Bluetooth competition.
We've rounded up options for every price range. Compare more at reviews.cnet.com/headphones-for-music-phones.
Klipsch Image X10i
CNET rating: ★★★★ out of 5 (Very Good)
Good: The Klipsch Image X10i headphones are extremely comfortable and feature super-slim, tiny ear pieces. They offer exceptionally clear and balanced audio, with good bass response and a reasonable amount of passive sound isolation. A module integrated into the cable includes an in-line mike and a call-answer button that doubles as a playback control for the iPod. There are other useful extras in the package, too, such as a case and a 1/4-inch adapter.
Bad: The headphones are expensive, and the wire is thin and tangle-prone.
Cost: $330-$350.