Ergonomic design supports palm and eliminates wrist strain Stable and optical mouse,can be used on almost all kinds of ,with a mouse pad be better Six buttons design makes the user experience more humanized System support: for 2000, for XP, for 7, for Vista, for 98, for OS, for ME, for 8, for 10 and so on Dual Mode RGB Type: Version: 2.4G+Bluetooth mouse Style: Vertical Mouse Power supply: Lithium Battery(rechargeable) DPI adjustable: 1000-1200-1600 Six Buttons: Left/Right Button,Scroll Wheel,DPI,Forward,Backward RGB LED Light Luminous Color: As Shown Material: ABS Package Contents: 1 x Wireless Bluetooth Rechargeable Mouse Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.