With POWERPLAY & LIGHTSPEED technology, Logitech G has solved the barriers to high performance wireless gaming. Input lag, wireless disconnects, & dead batteries are now a thing of the past. Welcome to the future of wireless PC gaming, achieved through advanced science & unrivaled engineering. Through innovative application of electromagnetic resonance, the POWERPLAY base creates an energy field above its surface. This allows charging while in motion & delivers wireless power without interfering with the precise measurement & 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.