Trust Yvi+ RF Wireless Optical Mouse 1,600 DPI Weight___907 g EliteBook 640 14 inch G9 EliteBook 640 14 inch G9 Notebook PC intensified with eye popping graphics powered by Unreal Engine 4 4 GHz Scrolling directions Vertical Number of scroll wheels 1 Button functions DPI switch Number of movement resolution modes 2 Customizable movement resolution Yes Movement resolution 1600 DPI Buttons type Pressed buttons Buttons quantity 4 Scroll type Wheel Movement detection technology Optical Device interface RF Wireless Purpose Office Design Material Acrylonitrile butadiene styrene (ABS) Surface coloration Monochromatic Product colour Black Ergonomic design No Form factor Right hand Ergonomics Wireless range 8 m Power Service life of battery 12 month(s) Battery type AA Number of batteries supported 2 Rechargeable No Power source Batteries System requirements Other operating systems supported ChromeOS Mac operating systems supported Yes Windows operating systems supported Yes Weight & dimensions Weight 77 g Height 95 mm Depth 40 mm Width 57 mm Packaging content Batteries included Yes Receiver type Micro receiver Wireless receiver interface USB Type A Receiver included Yes Packaging data Package height 160 mm Package weight 111 g Package depth 45 mm Package width 96 mm Quantity 1 Logistics data Country of origin China Harmonized System (HS) code 8471607000 no worries