Trust TM 250 mouse Ambidextrous RF Wireless Optical 1600 DPI Operating system installed___ChromeOS Please note the Doro 6060 Please note the Doro 6060 is only compatible with 2G mobile networks completely remade from the ground up This makes it ideal for versatile use around the office and perfect for suiting various employee preferences 4 GHz Scrolling directions Vertical Number of scroll wheels 1 Button functions DPI switch Number of movement resolution modes 3 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 Surface coloration Monochromatic Product colour Black Ergonomic design No Form factor Ambidextrous Ergonomics Wireless range 10 m Power Battery type AA Number of batteries supported 1 Power source Batteries System requirements Mac operating systems supported Yes Windows operating systems supported Yes Weight & dimensions Weight 72 g Height 114 mm Depth 41 mm Width 63 mm Packaging content Receiver type Micro receiver Wireless receiver interface USB Type A Receiver included Yes Packaging data Quantity 1 Logistics data Harmonized System (HS) code 84716070