With POWERPLAY and LIGHTSPEED technology, Logitech G has solved the barriers to high performance wireless gaming. Input lag, wireless disconnects, and dead batteries are now a thing of the past. Welcome to the future of wireless PC gaming, achieved through advanced science and unrivaled engineering. Through innovative application of electromagnetic resonance, the POWERPLAY base creates an energy field above its surface. This allows charging while in motion and delivers wireless power without interfering with the precise measurement and data transmission of a high-performance gaming mouse. Logitech G invented LIGHTSPEED wireless technology to deliver the ultimate in high-performance wireless gaming. LIGHTSPEED wireless technology is as fast or faster than many leading competitor's wired gaming mice. So you get the freedom of wireless with no compromises.