Specifications :Requires: Bluetooth low power technologyWindows 10 or later, Windows 8Mac OS X 10.10 or laterChrome OS Android 5.0 or laterUnifying ReceiverOne available USB portWindows 10 or later, Windows 8, Windows 7Mac OS X 10.05 or laterChrome OS LinuxTechnical specificationsConnection type: Bluetooth smart and 2.4GHz wireless connectionWireless range: 10 metersVaries depending on usage and calculation conditions.Sensor technology: Logitech advanced optical tracking technologySensor resolution: 1000 dpiRoller: YesNumber of keys: 7Standard and special keys: Tilt rollers with cente keys for easy switchingGesture support (Windows): YesGesture Support (Mac): YesProduct packaging contentWireless Mute MouseUnifying ReceiverAbout Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to Du the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shoppingThanks for your cooperation and weand 39 ll make you feel satisfied. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.