The reason here is obvious, however - a smaller audio stream means more video can be transmitted, particularly important in the case of the iPad.

原因是再明显不过的，然而更小的音频流意味着更多的视频可以被传送，在iPad的例子上尤其重要。

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This case folds into different angles which allows the iPad 2 to prop up like a computer screen and also offers a resting spot for an external Bluetooth keyboard.

该盒子可以折叠到各个角度，这样，iPad 2就可以像一个电脑屏幕那样使用，并且它也预留了一个外置蓝牙键盘的接口。

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This elegant iPad case does double duty as a lightweight protective cover and ingenious adjustable stand.

这款做工考究的iPad保护套兼具轻便保护罩和可调节支架两种功能。

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The DODO case is a high-end iPad case that looks like a book.

FORBES: iPad Saves Bookbinder

With a laptop-style keyboard and well-spaced keys for its size, the Belkin Portable Keyboard Case for iPad mini helps reduce typing mistakes common on tablets.

ENGADGET: Belkin bulks up iPad mini with $80 Portable Keyboard Case

He thinks the latest info he received is pretty accurate, hence the production of the iPad 5 case (and accompanying iPad Mini and iPad 4 cases) shown above.

FORBES: iPad 5 Leak Points to June Release