ship from Japan The latest model of trackball mouse, which will be the first update in 10 years Scroll wheel with new tilt angle holds your fingers in a more natural and comfortable position / fits a wide range of hand sizes Smoother and more accurate ball control / tracking with 2000DPI accuracy Connection is compatible with Logitech’s original Unifying USB / Bluetooth / Connection range of up to 10 m (USB port): Compatible with Windows 7 or later, macOS 10.13 or later (Bluetooth): Windows 8 or later, macOS 10.13 or later, iPad OS 13.4 or later Batteries used: 1 AA battery