Genius Ergo 8350S Bluetooth+2.4GHz Wireless Vertical Ergonomic Silent MouseGenius all-in-one wireless ergonomic vertical mouse Ergo 8350S combines Bluetooth+2.4GHz dual mode. quiet click. wake up Copilot AI. power saving. high sensitivity. very suitable for computer or tablet use. Its 55° inclination for palm and the thumb protective design reduce shoulder and neck pain or wrist muscle fatigue caused by long-term computer use. The Ergo 8350S is great gift for oneself or people.FeaturesBluetooth+2.4GHz wireless ergonomic vertical mouseNatural 55° palm inclination with big thumb rest to reduce stress and muscle strainQuiet click less noise6-button with buttons to activate CopilotBluetooth / 2.4GHz dual mode. working distance up to 10 metersDPI button: 1200 / 1600 (default) / 2400 dpiPower saving switchSystem RequirementsComputers. phones. or tablets with Bluetooth or USB portUSB ReceiverRequired: Available USB portWindows 8. 10. 11 or latermacOS 10.14 or laterChromeOSBluetoothWindows 8.1