New and not used!!! It was purchased several months ago, stored, and has not been used. Key mouse specifications: Buttons: LIGHTFORCE hybrid switches (combining laser speed with mechanical click feel). Sensor: HERO 25K sensor with extreme precision. Lighting: LIGHTSYNC RGB technology with 8 customizable lighting zones. Weight: Weight has been reduced compared to the previous version to be lighter and faster in movement. Connectivity: LIGHTSPEED wireless technology (faster than wired and without any delay). Battery: Very long battery life with fast charging support. Whoever offers the closest price can come and take it (no bargaining or price haggling) - fastest sale to the closest offer.