Idea of Multiple Devices Icon
The icon signifies multiple devices. A large screen is in the back, presumably a laptop, is in the back. In front of the laptop, a smartphone is in the right corner and a tablet is placed in the left.
This Multiple Devices icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,200 icons, all in the same style and quality.