- Control up to 3 computers and transfer text, images, and files between them with Logitech Flow. - Darkfield High Precision tracking for precise control on almost any surface, even glass (minimum 4 mm), with up to 4,000 DPI. - Fast charging: 3 minutes of charge provides a full day of use; a full charge lasts up to 70 days. - Ultra-fast and horizontal scrolling thanks to the adaptive wheel and thumb action. - Ergonomic and comfortable design, shaped to the hand, supports the wrist and enables precise control. - Conveniently placed buttons and wheels for greater comfort and efficiency.