"Master Grip" designed to reduce stress and discomfort associated with overuse in your hands, wrist, elbows, forearms, and shoulders by maintaining a neutral "handshake" grip.
Triple Mode - Bluetooth x2 or 2.4 GHz Wireless Mode (with dongle) - Control three computers with one mouse
Switch from one mode to another with the push of a button. Connects by Bluetooth or USB Dongle for Wireless connections
Number of Buttons: 7 (plus scroll wheel), all silent, Rechargeable battery