This is a circle with two very short lines coming out on opposite ends. Both lines have a small circle dot at the end of them. Inside the big circle are two overlapping ovals. Inside the very center of those ovals is a thick circular disk with a hole in the center.
This is a Gyroscope icon. We've made it in iOS style
, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,700 icons, all in the same style and quality.