Wireless syncing and updating

Wi-Fi Sync allows your device to sync with your computer over a Wi-Fi network in other words than through a USB connection. It's slightly slower, however you can do it any time your device is on the same Wi-Fi network as your desktop. Better after all, your device stays perpetually connected: You can adjust settings and re-sync without having to disconnect and reconnect any cables. Another benefit to this perpetual connection is that when syncing, you're no longer stuck with the Do Not Disconnect screen every time you're updating your song list or changing a setting; instead, it all happens in the background, allowing you to multitask and use your device while a sync session.

(Image Caption: Check the Sync With This device Over Wi-Fi box and press the Sync button to enable Wi-Fi syncing for your iPhone, iPod touch, or iPad.)

The box that enables syncing

Check the box that enables syncing, press the Sync button to save your changes, and you're all set. By default, your device will sync with your computer any time it's plugged in and both are on the same Wi-Fi network; you can as well force a sync by going to the Settings app and tapping General -> iTunes Wi-Fi Sync and at the time tapping Sync Now.

Install updates from your computer: Perhaps you're not that adventurous, and you'd prefer to install your software update the old-fashioned way. No problem: Just connect your device to your computer and check for updates in iTunes.