The Slim EX Wireless Mouse has a polling rate of 125 Hz, and that rate is the same in both connection modes: Bluetooth and 2.4 GHz wireless (using the included USB-C receiver). A polling rate of 125 Hz means the Slim EX Wireless Mouse reports its position to your computer 125 times per second. That rate is standard for productivity mice and works well for general use, office tasks, and everyday navigation.