Some new buildings such as auditoriums have installed wire mesh in the walls, which prevents any signal getting through, but does not contravene the jamming laws.
英
美
- (即使在大多数国家,如美国,这种设备的使用是非法的)在获得法律允许的前提下,一些新建起的建筑物,例如演奏厅安装起网墙阻止信号的接通。