A/V switching is a feature that allows users to connect one or more sources, such as a VCR, camera and/or laser videodisc player and select which source will be monitored.

• A/V转换是一种功能，允许用户连接一个或多个播放源，如录像机、照相机和/或激光视盘播放器，并且选择监视哪种播放源。