Mfr Part Number: F5M010QBLK. Features: . Ambidextrous design for both left or right hand. PC/Mac Compatible. Red LED Sensor Light. Plug & Play. Buttons: 3. Sensor: Optical. Resolution: 800 DPI. Scroller Type: Scroll Wheel. Cord Length: 4.9 ft. Dimensions (WxLxH): 2.4 x 4.3 x 1.5 inch. Weight: 5.1 ounces- SKU: MBBK-F5M010Q