GEMBIRD MUS-4B-02 Gembird optical mouse 80014283 Product Description: Gembird MUS-4B-02 - mouse - USB - black Device Type: Mouse Connectivity Technology: Wired - USB Colour: Black Dimensions (WxDxH): 8 cm x 11.5 cm x 3.8 cm Weight: 76 g Movement Detection Technology: Optical Buttons Qty: 4 Movement Resolution: 1200 dpi Performance: Realtime sensitivity switching 800/1000/1200 dpi Cable Length: 1.35 m OS Required: Microsoft Windows 7 / 8 / 10 Package Type: Blister