Characteristics and Interoperability Optical Sensor Technology Resolution of the sensor: 1000, 1200, 1600 DPI Longest Battery Life: Three Months Type of Battery: 2*AA Four buttons Maximum wireless distance of ten meters 2.4GHz wireless system Wireless Connection Type (USB RECEIVER) Dimensions: 10.5, 3.5, and 6. cm It is easy to carry around for all of life's adventures because it is lightweight and portable! Long Lasting Battery Life: You won't have to worry about running out of power while working thanks to the battery's up to three-month lifespan. Plug and Play Nono Receiver: Easily free up space on your laptop and desk! When not in use, it fits neatly inside the mouse. Optical tracking technology provides smooth and stable tracking for improved working performance.