The gorgeous 3.3-inch capacitive OLED touchscreen takes up the majority of the device's face. More on that below. It's surrounded by three hardware buttons: Underneath the screen on the face is the home button, on the top edge is the power/hold button, and in lieu of a volume rocker the Zune HD has a button on the left side that brings up Quickplay options. These options drift onto the screen and offer volume, track forward/back and play/pause. Quickplay can be enabled to work even while the player is locked.
On the bottom of the device is the proprietary Zune port (the Zune HD will work with all of the surprisingly easy-to-find existing Zune accessories) and the headphone jack. It's rated for 33 hours of audio and 8.5 of video, which is very strong if it's true (especially since previous Zunes were lacking in battery life, to say the least). The Zune HD lacks both a speaker and a camera, though neither is necessarily a mark against it. Still, both options would be welcome.