FM transmitters that simply grab the audio from your device's headphone jack will of course work fine with the iPad 2.

If you're looking to get video out of your iPod and onto another display, Apple offers four different options: the $39 , which lets you output HD video from supported apps as well as mirror the iPad's display, via HDMI; the $29 (formerly the iPad Dock Connector to VGA Adapter), which lets you output video over a VGA connection--at 1024-by-768 resolution with a 720p scan rate--from ; the $39 , which outputs video from compatible apps at 480p or 576p resolution; and the $39 , which works with compatible apps to output video at 480i resolution. (The Digital AV Adapter provides audio output via HDMI; the Component and Composite AV cables include left/right analog audio cables. For outputting audio while using the Apple VGA Adapter, you'll need a separate audio cable that grabs the audio signal from the iPad 2's headphone jack.)

Note that to watch higher-definition iTunes (rented or purchased) video on an external display, you'll need to use either the Digital AV Adapter or the Component AV Cable. This is because iTunes' HD videos include and require an HDCP-compatible connection, which these two accessories provide. If you don't have the Digital AV Adapter or Component AV Cable, you'll need to sync to your iPad the standard-definition versions of your iTunes-purchased videos; the SD versions will play over the VGA Adapter or Composite Cable.

You can also use third-party video accessories that include the necessary Apple-approved circuitry, which should include most Made for iPad-, Made for iPhone-, and Made for iPod-certified video accessories made in the past few years. These accessories should let you output video to TVs via component or composite connections, along with stereo audio.