When desk life gets you down, lift yourself up. A great fit for small- and medium-sized hands, the Lift Vertical Ergonomic Mouse is crafted for comfort from first light to late night. Raise your hand into instant comfort, thanks to a soft rubber grip, a cozy thumb rest, and a 57-degree angled design that promotes a more natural posture. Connect up to three devices via Bluetooth or Logi Bolt, and enjoy up to two years of battery life from a single AA battery. Battery life may vary based on user and computing conditions. Connector/Port/Interface: Bluetooth; USB; Left/Right Hand Use: Left; Mouse Technology: Mechanical; Wired/Wireless: Wireless.