它的两个主按键不是机械的，而是电容触摸传感器。它还有细微的扬声器，每当按击时都会有声音响应。鼠标还有一个滚球使用户能朝任意方向滚动页面。
The two main buttons are not physical, but instead use capacitive touch sensors with a tiny speaker to provide audible feedback for each click.
杜比认证的扬声器：2个2W主喇叭，2个次喇叭，加一个低音炮。
Two 2W main speakers, two secondary speakers and a powerful sub woofer for the best sound experience.
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