An optical connection for Dolby Digital sound, an adjustable bass boost and stereo expander let you enjoy premium audio during gameplay.

一种光学连接杜比数字声音，可调的低音增强和立体声音频扩让你享受在游戏中在保费。

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The 1 o'clock position denotes if your mic is muted, while at 3 o'clock is a Dolby Digital status (stereo or surround sound).

ENGADGET: Turtle Beach XP Seven Series headset review: a new era of tournament-grade gaming audio

Custom Dolby audio and dual stereo speakers for crisp, rich sound.

ENGADGET: Kindle Fire HD 8.9 launched in Europe and Japan, gets permanent price cut in the USA

Kindle Fire HD features a stunning custom high-definition display, exclusive Dolby audio with dual stereo speakers, high-end, laptop-grade Wi-Fi with dual-band support, dual-antennas and MIMO for faster streaming and downloads, enough storage for HD content, and the latest generation processor and graphics engine-and it is available in two display sizes-7" and 8.9".

ENGADGET: Kindle Fire HD 8.9 ships today, 4G version to follow next week