CHYI Ergonomic Vertical Mouse 2.4G Wirele Right Left Hand Computer Gaming Mice 6D USB Optical Mouse Gamer Mouse For Laptop PC Notice: This mouse backward button and forward button cannot be used for Macbook and Apple Computer This mouse has a sleep function, 3-5 minutes is normal sleep, shake the mouse can wake up, 8-10 minutes is deep sleep, need to pre the left and right keys to wake up This is opto-electronic mouse, it needs to be used on the mouse pad , then the mouse will work well ! If the mouse is not fluid and jerks, this mouse has three DPI modes(800-1200-1600), please make sure you adjust the DPI to match your computer. ANY TROUBLE , CONTACT SELLER FOR HELP ! Feather : and Ergonomically designed, it makes mouse more better grip. So it is more convenient for hands than ordinary mouse. 2.4 GHz Wirele mouse with comfortable touch The mouse with LED light ,it is very fancy. When you donand x27;t use the mouse, please you switch OFF. It can save power. The mouse add side button, it is conveninet to browse web The mouse was packed by bubble wrap bag, donand x27;t worry, we had checked that the package is very safe The dongle can be stored into the mouse neatly when it is not use Receiver storage space and carrying easily System support: Windows 2000, Windows XP, Windows 7, Windows Vista, Windows 98, Mac OS, Windows ME, Windows 8 ,window 11,window 10... Specification: Item: Vertical Mouse Type : Wirele Mous Design:Ergonomic Mous Colour:Black Power Supply : 2 x AAA Battery (Not Including ) Demension: 125 x 65 x 82m N et Weight : 109 Adjustable DPI : 800-1200-1600 Button : 6 Buttons (Left/Right Button, Forward/Backward Button, DPI Button, Scoller Material: ABS Package Included: 1 x Wirele vertical Right/Left hand mous 1x USB Receiver Notice: If you need left hand mouse, please you choose the picture that it is left hand mouse, if you need right hand mouse, please you choose the picture that it is right hand mouse x Left Hand x Right Hand 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.