[Easy To Support 3 Devices] The Rapoo Bluetooth 3.0 .0 Wireless 2.4G Technology Wireless Mouse Supports 3 Devices, Two Devices Via Bluetooth And The Third Via A 2.4Ghz Usb Dongle. With A Mouse, You Can Switch Easily With Simple Buttons. Please Note That You Cannot Control Three Devices At The Same Time. $ [Silent Design] This Silent Wireless Mouse Has A 90% Noise Reduction Function. The Quiet Click Eliminates Your Worries About Disturbing Others, Allowing You To Better Focus On Your Work. Enjoy Peace And Tranquility In Your Browsing And Working Experience. Anti-Fingerprint And Sweat-Proof Shell, Breathable And Moisture-Absorbing, Refreshing And Cool. Suitable For Laptop/Desktop/Macbook/Notebook/Chromebook. $ [Ergonomic High-Precision Optics] The Left And Right Hands Are Symmetrically Designed, And The Flat Arc Fits The Curve Of The Hand. Fatigue Relief, Suitable For All-Day Use. High-Precision Optical Engine, You Can Use The Mouse On Various Surfaces Such As Leather, Cloth, Paper, Table, Wood, Or Resin Without A Mouse Pad. $ [Convenient And Extend Battery Life] Rapoo Uses Low-Power Technology And A Power-Saving Design With A Power Switch To Extend Battery Life. Normally, The Battery Life Is 9 Months. Portable And Small, It Is Convenient To Carry On Office And Business Trip Or Travel. $ [Easy To Carry] The Mouse Is Small And Easy To Carry