Logitech Lift Vertical Ergonomic Mouse - Vertical mouse - ergonomic - optical - 6 buttons - wireless - Bluetooth, 2.4 GHz - Logitech Logi Bolt USB receiver - off-white. When the desk life gets you down, lift yourself up. A great fit for small to medium hands, Lift Vertical Ergonomic Mouse is crafted for comfort from first light to late night. Raise your hand into instant comfort with a soft rubber grip and cozy thumb rest. Realign into a more natural posture at 57°. And feel focus flow from morning to night with productivity features designed to suit your working style.