Specifications of Razer Viper Mini Wired Gaming Mouse: Type: Wired gaming mouse. Weight: 61 grams (very light). Sensor: Optical with a resolution of up to 8500 DPI. Polling Rate: 1000Hz (1ms). Number of Buttons: 6 programmable buttons. Switch Type: Very fast Optical (response ~0.2ms). Lighting: RGB (Razer Chroma). Cable: Speedflex, very light and flexible. Feet: Pure PTFE (smooth movement). Memory: Stores settings inside the mouse. Mouse Condition: The mouse has no scratches and everything in it is working. The mouse is from a well-known company, meaning it can last you comfortably for 4 years without breaking. Reason for Selling: I received another new mouse.