What is an articulating wall mount

TV Wall Mount Bracket Articulating Arms Swivel Tilt 13-42 TV Stand Monitor Inch Display Rotatio J2C2

Nest Cam Camera Wall Mount Adapters Articulating Mount Installation Tool

Magic Articulated Arm 32" Bracket for Gopor DSLR Camera Camcorder Smartphone Clamp Wall Mount Mini Tablet Webcam Video Studio

10 Inch Articulating Friction Magic Arm with Wall Mount Base for Webcam LCD Monitor LED Light Camera Rig

Wall Mount 1/4 3/8 Hole Fixed Base Magic Arm Articulating Friction Adapter for Webcam Projector Monitor LED Flash Light Bracket

Wall Mount 1/4 3/8 Standard Thread Magic Arm Articulating Friction Adapter for Webcam CCTV Projector LED Flash Light DSLR