ship from Japan Quiet model with reduced noise while maintaining the clicking sensation Two computers can be controlled with Logitech Flow Software (Lgicool Options) allows you to customize the 5 buttons according to your preference Supported OS Unifying, free USB port, Windows 10 or later, Windows 8, Windows 7, Mac OS X 10.10 or later, Chrome OS Bluetooth low energy technology, Windows 10 or later, Windows 8, Mac OS X 10. .10 or laterChrome OS, Android 5.0 or later Operating distance: Approx. 10m. Wired/Wireless Wireless Body size (W x D x H): 64 x 103 x 40 mm Reading method optical