Bluetooth, Three-Level Adjustable Resolution, Three Buttons with Scroll Wheel Bluetooth technology offers wireless freedom with effective range up to 10 m (33 ft.). Auto power management helps maintain proper battery levels. Push-button control instantly shifts resolution through three levels from 1000 to 2000 dpi. Compact size, ambidextrous shape and no-slip texture provide secure grip. Low-friction base smoothly glides over work surfaces. Plug and Play installation. Bluetooth-enabled Windows, Mac, and Android