The iPod Touch has the same headphone port on top and dock-connector jack on the bottom like other iPods. But because most of its controls are behind its sensitive screen, the iPod Touch only has a couple of physical buttons on the outside.
One of these is the volume rocker on the left side. Pressing the top nib increases the sound on either the tiny little external speaker or an attached pair of headphones; the bottom nib lowers the volume.
For your pushing pleasure, the Touch comes with two other buttons:
Home. Forget clicking your heels together three times—just push this indented button on the bottom of the Touch and you'll always return home. The iPod's Home screen is where all your tappable icons for Music, Photos, Safari, and more all hang out. If you ever wander deep into the iPod and don't know how to get out, push the Home button to escape. You can also push it to wake up the iPod Touch from sleep.
Sleep/Wake. Press the thin black button on top of the Touch to put it to sleep and save some battery power. If you've got a song playing, no problem: a sleeping Touch still plays—it's just the display that goes dark.