Connection Type: Wired Interface: USB Mode of Operation: Optical Photoelectric Resolution: 2400 DPI Number of Buttons: 6 Lamp Effect: 4-color RGB light effect Ergonomics: Right and left symmetry anti-skid for both side Working Voltage: DC 5V Operating Current: <100 mA System Requirements: for Windows 7.8.10 or above Product Size: 128 X 69.7 X 40.8 mm/5.04 X 2.74 X 1.61” Product Weight: 132 g