Wireless Optical Mouse – 5G anti-interference wireless transmission – 18 months battery life – 4D scroll wheel for fast browsing – One-key DPI-switching 5G anti-interference wireless transmission By using 5G wireless transmission and keeping away from the 2.4G wireless channel, interference from Bluetooth and Wi-Fi equipment can be avoided. 18 months battery life With Rapoo’s latest energy saving technology and power switch, you can use your mouse without power interruption for up to 18 months. 4D scroll wheel for fast browsing You can scroll up and down, or scroll from side to side in documents or in your browser for the accurate navigating. One-key DPI-switching Choose for low DPI for accuracy or high DPI for fast movement. You can instantly switch between 500 and 1000 DPI. Fashionable and Colourful Fashionable and colourful