Prodot 3D Optical Mouse Model: MU253s USB 1000 DPI: Accurate definition and highly sensitive operation Wider Compatibility: Compatible with Windows, Mac OS & Linux Exceptionally Comfortable: Ergonomic design for comfortable grip and special finger rests for stress fress working High Precision: Advanced optical navigation technology for high precision and extra smooth operation 5 million click life: Hi-quality switches that support upto 5 million clicks ABS Plastic: Strong & durable plastic body, made of ABS Models & Range: Available in various models in attractive colors and surface finishes Easy set-up: No software to install, ready to use right out of box