ship from Japan It is a small size Bluetooth mouse 'iO + (io plus)' that fits your finger and is easy to hold. All switches are equipped with silent switches, making it convenient for use in public places and during meetings. Equipped with a blue LED optical sensor for smooth operation. *The cursor may not move smoothly when used on materials that reflect light such as mirrors or transparent materials such as glass. Also, the tracking ability may be degraded on regular patterns. It is a wireless type that can be used without worrying about cables. The 2.4GHz digital band, which is resistant to radio interference, enables stable data communication over a wide range of 10m radius. The cursor speed can be switched between 800, 1200 and 1600 counts according to the application.