• PAW3395 Sensor • Wired 8K + Wireless 4K (Include a NANO 4K Receiver) • 8000Hz Wireless Polling Rate • Omron Micro Switch (60 Million Cycles) • Six-level adjustable DPI (400/800/1600/3200/6400/26000) • TTC Gold Wheel Encoder • Realtek Low-power Chip • 59g (± 2g) • 500mAh • 130 Hours