The iPhone earbuds do more than you might realize. The headphones have a small button on the microphone and it performs multiple functions.

1. Press once to start the iPod and begin playing a song. Press again to pause the track or double-tap to skip to the next song.
2. If a call comes in, press the button once to answer or double-tap to send the call right to voicemail. During a call, press once to hang up.
3. Triple clicking the headset button returns iPod to previous track