Microsoft introduced on Tuesday three new models of its Zune digital media player that wirelessly and automatically update their music, photos and videos when placed near a user's computer. The new Zunes will come in 4-gigabyte, 8-gigabyte and 80-gigabyte models. All will come with a feature that allows a user to automatically sync media via a WiFi network from a PC to the Zune when its battery is charging. Microsoft also aims to tap the social-networking phenomenon with Zune Social, a Web site for users to display music they like, share playlists and find friends with similar tastes.

The new devices, set to go on sale in mid-November, are equipped with a circular navigational pad that allows a user to both "flick" through options like on a touch screen or "click" through choices. The 4-GB model will go on sale at $149, the 8-GB Zune will cost $199 and the 80-GB model will sell for $249. Those prices are the same as similar-sized iPods.