Logitech MX Vertical Wireless Mouse – Advanced Ergonomic Design Reduces Muscle Strain, Control and Move Content Between 3 Windows and Apple Computers (Bluetooth or USB), Rechargeable, Graphite Mice - Newegg.com
Geek Review: Logitech MX Vertical | Geek Culture
Amazon.com: logitech MX Vertical Advanced Ergonomic Mouse, Wireless via Bluetooth or Included USB Receiver (Renewed) : Electronics
Logitech MX Vertical Advanced Wireless Optical Ergonomic Mouse with USB and Bluetooth Connection Graphite 910-005447 - Best Buy
Logitech MX Vertical Mouse Review: Comfortable but Pricey