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. Compact ambidextrous design. Ergonomic design with Villi painted grip. Blue optical sensor, tracks on most surfaces. Silent left/right keys with 2-way scroll wheel (up/down). 800-1600-2400 adjustable DPI. Wireless connection via USB-C dongle. Supports Lenovo unified pairing receiver. Rechargeable. Programmable "utility button" on the side. Default functions optimized for Teams calls.