The system is easy to operate, every station can call to control room or other station and can realize multi-users call in the same time.

系统操作简单，系统内的任一话站均能与控制室或其它话站通话，每个话站均有选择任一通话通道的权利。

youdao

It offers brilliant light, reduces energy costs and creates a multi-room ambient music system in mere minutes.

ENGADGET: Klipsch LightSpeaker makes whole home audio as simple as screwing in a light bulb (hands-on)