Model : N100C Product size : 116 x 61.8 x 35.6mm Product weight: about 58g Connection method : wired How it works : Optical Maximum tracking speed: 30inch/s Buttons: left button, middle button, right button Wheel direction : bidirectional Resolution : 1000DPI Line length about : 1.5m Power supply mode : USB-C USB-C interface Adapt to multi-system USB-C devices. Left and right hand symmetrical design. frosted process cover. 1000DPI multi-surface application. Anti-skid grille rollers. No software required, plug and play.