ship from Japan The latest model of the trackball mouse, the first update in 10 years Newly angled scroll wheel holds fingers in a more natural and comfortable position / fits a wide range of hand sizes Even smoother and more precise ball control / 2000 DPI accuracy tracking Supports Logitech’s proprietary UnifyingUSB and Bluetooth connectivity / Up to 10m connection range (USB port): Windows 7 or later, macOS 10.13 or later (Bluetooth): Windows 8 or later, macOS 10.13 or later, compatible with iPad OS 13.4 or later Operating distance: approx. 10m