The wireless CALADO silent mouse lets you work in whisper-quiet comfort at your PC so you can keep calm in the hectic office environment. The advanced button technology effectively eliminates the noise you make when using the mouse: clicks are almost silent and those around you will no longer feel disturbed as it`s up to 90% quieter than a standard mouse.Thanks to its nice and compact shape combined with its premium, non-slip rubber coating, the CALADO Silent Mouse is designed to fit the shape of your right hand perfectly - all while offering precise and fluid tracking thanks to its sensor resolution of up to 1600dpi. What`s more, its robust wireless technology offers you up to 8m of wireless freedom.FeaturesButtons: FiveWireless: 2.4GHz TechnologyRange: Up To 8mResolution: 800 To 1600dpiSensor: OpticalDPI Switch For Rapid Toggling Between The Three Sensor Resolution SettingsQuick & Easy Installation, With No Additional Drivers NeededUp To 90% QuieterErgonomic Shape Designed To Fit Your Right Hand PerfectlyRubber Coating For A Great FeelNon-Slip, Rubberised Button/Function Scroll WheelCompact Nano USB Receiver & Practical Storage CompartmentAutomatic Stand-By Mode For Maximum Battery LifePowered: Two AAA Batteries (Included)Dimensions (LxWxH): 106 x 73 x 36 mm