Lenovo Go Wireless Vertical mouse Office Right-hand RF Wireless + USB Type-A Optical 2400 DPIOur 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. Lenovo Go Wireless Vertical. Form factor: Right hand. Movement detection technology: Optical, Device interface: RF