A $100 mouse you hold like THIS?? - Logitech MX Vertical Review - YouTube
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
Amazon.com: Logitech MX - mouse inalámbrico vertical – diseño ergonómico avanzado que reduce la tensión muscular, controla y mueve contenido entre 3 computadoras Windows y Apple (Bluetooth o USB), recargable, grafito : Electrónica