Auawak Rapoo 7800P 5G Wireless Ergonomic Programmable Laser Engine Mouse for Laptops Desktops and PC By using 5G wireless transmission and keeping away from the 2.4G wireless channel, interference from Bluetooth and Wi-Fi equipment can be avoided. Choose for low DPI for accuracy or high DPI for fast movement. You can instantly switch between 800 and 1600 DPI. Save time by using customised buttons, as Forward, Back,Tilt-wheel, Zoom-in, Zoom-out, etc for quick responses. So small and unobtrusive, you can plug it into a USB-port and forget about it. No more worries about lost receivers. You can update the firmware program in the driver to optimise your mouse performance (the firmware program can be downloaded from the our Rapoo website).