When triggered by the building's fire alarm control panel, it alerts building occupants to the location of the nearest exit using directional sound.

当大厦的火警警报控制面板被触发，该扬声器会使用定向声音引导住户到最近的出口。

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MTR Tung Chung Station Exit b, take bus no. 23 to Po Lin Monastery, follow the HKTB directional sign to Tea Garden, walk through the hiking trail from the entrance of Tea Garden for 15 mins.

港铁东涌站B出口，乘23线巴士往宝莲禅寺，然后循旅发局路牌指示往茶园，由茶园入口沿远足径步行15分钟即达。

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