"Perfect synchronization" refers to when two or more things are perfectly aligned or coordinated with each other. It means that they are moving or working together flawlessly and at the same time. Full definition
When all of the muscles of the body moved together in perfect synchronization in order to produce an athletic movement (a product of neuromuscular adaptation), this can be very powerful — say, an olympic power clean. (philmaffetone.com)
ACCOMPLISHMENTS • Implemented a feedback system that reviewed and measured event effectiveness in order to ensure follow up through with lead processing • Organized and executed three large scale events in a matter of three weeks with perfect synchronization (coverlettersandresume.com)
The corresponding software, which is compatible with an e-reading software, will make the texts of the book move in perfect synchronization with your head. (goodereader.com)