It usually needs to be done. If there is a ceiling, it is best to use a ceiling speaker. If there is no ceiling, it is best to use a wall hanging or a ball hanging speaker. Some projects will also use a ceiling speaker with a back cover (but this installation is a bit difficult and not beautiful enough. The advantage is that it is generally cheaper than the same brand of hanging ball speakers.

By the way, if you need to make a fire broadcast, you can make overall consideration, taking into account the background music on the basis of meeting the fire requirements.

Hope to adopt.