properties:- Wireless five-button mouse- 2.4GHz wireless technology for a range of up to 8m- maximum precision 1,600dpi optical sensor- dpi switch for rapid toggling between the three sensor-resolution settings- quick and easy installation – no additional drivers needed- up to 90% quieter- ergonomic shape designed to fit your right hand perfectly- rubber coating for a great feel- non-slip, rubberised button-function scroll wheel- compact nano USB receiver and practical storage compartment- automatic stand-by mode for maximum battery life- dimensions: 106 × 73 × 36mm (length × width × height)- batteries included (2xAAA)escription: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 1,600dpi. What’s more, its robust wireless technology offers you up to 8m of wireless freedom.