ship from Japan Easy to carry, stylish and highly functional wireless mouse from the MX series Ultra-fast and precise. And with the amazingly quiet MagSpeed electromagnetic scroll wheel The dark field 4000dpi sensor is used for any surface. Accurate tracking even on glass and other surfaces Supports Bluetooh and Logitech’s proprietary UnifyingUSB connection USB-C charging for up to 3 hours of use on a 1-minute fast charge or up to 70 days on a 2-hour full charge