The iPod Touch uses Apple's new smaller Lightning connector. On the left is the headset jack and on the right is a speaker. Without phone capabilities, there's no need for the microphone you'd find on the iPhone.
On its rear side, the iPod Touch shows other differences from the iPhone 5. At the top left corner are the camera lens and flash and directly below is the point for attaching the wrist strap. The new model replaces the steel backing of the previous iPod Touch with a matte anodized aluminum finish.