Package Included:<br /> <br />1 x MantisTek VM2 1600DPI 2.4GHz Wireless Ergonomic Vertical Mouse <br /><br /> Specification:<br /> <br />1. Brand: MantisTek<br />2. Model: VM2<br />3. Item: Ergonomic Vertical Mouse<br />4. Version: Left Hand Version / Right Hand Version<br />5. Connection: Wireless<br />6. Frequency: 2.4GHz<br />7. Tracking Method: Optical<br />8. Resolution(DPI): 1000 - 1200 - 1600DPI Adjustable<br />9. Operational Range: ≤10m <br />11. Power Supply: 2 x AAA Battery (Not Included.)<br />12. Voltage: 1.5V<br />13. Current: 30mA<br />14. Dimension(LxWxH): <br />      Right Hand Version: 125 x 65 x 80mm<br />      Left Hand Version: 123 x 73 x 67mm<br />15. Switch Life: 3 Million Clicking Life<br />16. Supported System: Windows 2000 / XP / Vista / CE / 7 / 10， Linux 2.4， for Mac OS<br /> <br />Features:<br /> <br />1. An Ergonomic Solution to Ease Wrist Pain Which is Caused by Long-time Mouse Using.<br />   Your hand with the Arm Keeps Straight and Placed Naturally When You Use a Vertical Mouse.<br />2. Dual Version for Option.<br />   "Right Hand Version" and "Left Hand Version" Which is Specially Designed for Left-handers.<br />3. 2.4GHz Wireless Connection with 10m Operation Range.<br />4. 1000/1200/1600dpi Modes for Option， Realizing High Precision.<br />5. Please Notice that Maybe You Need Sometime to Get Used to a Vertical Mouse.