V7 Vertical Ergonomic 6-Button Wireless Optical Mouse – Optical – Wireless – Radio Frequency – Black – USB – 1600 dpi – Scroll Wheel – 6 Button(s) – Symmetrical 2.4GHZ 6BTN 1600DPI WITH BATT

Logitech MX Vertical Advanced Ergonomic Mouse – Optical – Cable/Wireless – Bluetooth/Radio Frequency – Graphite – 1 Pack – USB Type C – 4000 dpi – Scroll Wheel – 4 Button(s) – Right-handed Only HANDSHAKE POSITION

Mouse features an ergonomic design to help you rise above discomfort and reduce muscle strain, decrease wrist pressure and improve posture. Vertical construction keeps your hand in a natural handshake position to reduce muscular strain by 10 percent and promotes a more ergonomic posture. 57-degree vertical angle reduces the pressure on your wrist, while your thumb is positioned comfortably on the thumb rest. Advanced optical tracking with a dedicated cursor speed switch results in four times less hand movement to reduce muscle and hand fatigue. Its unique form is designed to fit a variety of hand shapes and sizes while the textured rubber surface assures a solid, natural grip.