Our hands were not designed to be flat on tables for 8 hours a day, yet that is how mice were designed in the past. The Lenovo Go Wireless Vertical Mouse goes beyond the norm and delivers an experience that replicates the natural form of a handshake with a 45° palm grip and revised finger positioning for optimal posture and productivity.,Features & Benefits,True Ergonomic vertical design,Natural handshake position to reduce forearm and wrist strain,Comfort grip with UV-coated cork material,Easy to wipe and clean, resistant to common liquids and gels,6 button mouse, 3 programmable side buttons,On-the-fly DPI adjustment, Up to 2400 DPI,Blue optical sensor,Supports Lenovo Unified Pairing Dongle,Customize via Lenovo Go Accessory Central